Athens 1896
Thickness: 3.8mmDiameter: 48mmWeight: 47gQuantity: 100Designer: Jules Clement Chaplain
Winners at the first modern Olympics did not receive a gold medal but a silver one. Runners-up had copper. On the front Zeus, father of the Gods, holds Nike, the goddess of victory. The Acropolis is shown on the back.
Paris 1900
Thickness: 3.2mmDimensions: 59mm x 41mmWeight: 53gQuantity: --Designer: Frederique Vernon
Gold, silver and bronze medals for the first time, and the only rectangular design amid the discs. Nike is on the front, a victorious athlete on the back.
Saint Louis 1904
Thickness: 3.5mmDiameter: 37.8mmWeight: 21gQuantity: --Designer: Dieges and Clust staff
These feature an athlete holding the victory symbol of a laurel crown, in front of a relief which shows the ancient Olympic disciplines. Nike is on the other side.
London 1908
Thickness: 4.4mmDiameter: 33mmWeight: 21gQuantity: 250gDesigner: Bertram Mackennal
Australian sculptor Bertram Mackennal - who designed the King George V coins and stamps - depicted two women crowning an athlete with laurel, and England's patron saint, St George.
Stockholm 1912
Thickness: 1.5mmDiameter: 33.4mmWeight: 24gQuantity: 90Designer: Bertram Mackennal/Erik Lindberg
Stockholm's medals include an image of a herald declaring the opening of the Games and a bust of Swedish gymnastics pioneer Pehr Henrik Ling.
Antwerp 1920
Thickness: 4.4mmDiameter: 59mmWeight: 79gQuantity: 450Designer: Josue Dupon
The reverse design celebrates the mythical Roman soldier Silvius Brabo, said to have thrown the hand of toll-charging giant Druon Antigoon into the River Scheldt at Antwerp.
Paris 1924
Thickness: 4.8mmDiameter: 55mmWeight: 79gQuantity: 304Designer: Andre Rivaud
In the spirit of sportsmanship, the front features an athlete helping his rival to rise. The back has sports equipment and a harp - a nod to the Cultural Olympiad.
Amsterdam 1928
Thickness: 3mmDiameter: 55mmWeight: 66gQuantity: 254Designer: Giuseppe Cassioli
Florentine sculptor and painter Giuseppe Cassioli wins an IOC competition to design the medals and from 1928 to 1968, the basic design remains identical.
The front shows victory goddess Nike, holding a winner's crown and a palm. The back: a winner carried by a crowd.
Los Angeles 1932
Thickness: 5.7mmDiameter: 55.3mmWeight: 96gQuantity: --Designer: Giuseppe Cassioli
Florentine sculptor and painter Giuseppe Cassioli wins an IOC competition to design the medals and from 1928 to 1968, the basic design remains identical.
The front shows victory goddess Nike, holding a winner's crown and a palm. The back: a winner carried by a crowd.
Berlin 1936
Thickness: 5mmDiameter: 55mmWeight: 71gQuantity: 320Designer: Giuseppe Cassioli
Florentine sculptor and painter Giuseppe Cassioli won an IOC competition to design the medals and from 1928 to 1968, the basic design remains identical.
The front shows victory goddess Nike, holding a winner's crown and a palm. The back: a winner carried by a crowd.
London 1948
Thickness: 5.1mmDiameter: 51.4mmWeight: 60gQuantity: 300Designer: Giuseppe Cassioli
Florentine sculptor and painter Giuseppe Cassioli won an IOC competition to design the medals and from 1928 to 1968, the basic design remains identical.
The front shows victory goddess Nike, holding a winner's crown and a palm. The back: a winner carried by a crowd.
Helsinki 1952
Thickness: 4.8mmDiameter: 51mmWeight: 46.5gQuantity: 320Designer: Giuseppe Cassioli
Florentine sculptor and painter Giuseppe Cassioli won an IOC competition to design the medals and from 1928 to 1968, the basic design remains identical.
The front shows victory goddess Nike, holding a winner's crown and a palm. The back: a winner carried by a crowd.
Melbourne 1956
Thickness: 4.8mmDiameter: 51mmWeight: 68gQuantity: 280Designer: Giuseppe Cassioli
Florentine sculptor and painter Giuseppe Cassioli won an IOC competition to design the medals and from 1928 to 1968, the basic design remains identical.
The front shows victory goddess Nike, holding a winner's crown and a palm. The back: a winner carried by a crowd.
Rome 1960
Thickness: 6.5mmDiameter: 68mmWeight: 211gQuantity: --Designer: Giuseppe Cassioli
While the design remains the same, these medals are set in a bronze "laurel leaf" ring and chain. The front and back designs are swapped over.
Tokyo 1964
Thickness: 7.5mmDiameter: 60mmWeight: 62gQuantity: 314Designer: Giuseppe Cassioli/Toshikaka Koshiba
Florentine sculptor and painter Giuseppe Cassioli won an IOC competition to design the medals and from 1928 to 1968, the basic design remains identical.
The front shows victory goddess Nike, holding a winner's crown and a palm. The back: a winner carried by a crowd.
Mexico 1968
Thickness: 6mmDiameter: 60mmWeight: 130gQuantity: --Designer: Giuseppe Cassioli
Florentine sculptor and painter Giuseppe Cassioli won an IOC competition to design the medals and from 1928 to 1968, the basic design remains identical.
The front shows victory goddess Nike, holding a winner's crown and a palm. The back: a winner carried by a crowd.
Munich 1972
Thickness: 6.5mmDiameter: 66mmWeight: 102gQuantity: 364Designer: Gerhard Marcks
For the first time in 44 years, Munich's organisers break from tradition on the back of the medal. Gerhard Marcks from the German Bauhaus design school depicts Castor and Pollux - the mythological twin sons of Leda who had different fathers: Spartan king Tyndareus and Zeus.
Montreal 1976
Thickness: 5.8mmDiameter: 60mmWeight: 154gQuantity: 420Designer: Giuseppe Cassioli
The trend for a sparse design on the reverse of the medal continues with a simple laurel crown and the host city's Olympic emblem.
Moscow 1980
Thickness: 6.8mmDiameter: 60mmWeight: 125gQuantity: --Designer: Giuseppe Cassioli/Ilya Postol
The idea of featuring the host city logo on the reverse continues, above a stylised representation of a stadium and Olympic flame and cauldron.
Los Angeles 1984
Thickness: 7.9mmDiameter: 60mmWeight: 141gQuantity: --Designer: Giuseppe Cassioli
The medals return to Cassioli's design but were also worked on by American illustrator Dugald Stermer.
Seoul 1988
Thickness: 7mmDiameter: 60mmWeight: 152gQuantity: 525Designer: Giuseppe Cassioli
Modernist again, with a dove carrying a laurel sprig and the Seoul Olympic logo - an ancient Korean Taegeuk symbol, like that on the national flag.
Barcelona 1992
Thickness: 9.8mmDiameter: 70mmWeight: 231gQuantity: --Designer: Xavier Corbero
Spain's most famous living sculptor Xavier Corbero spruces up the figure of Nike for modern times and puts Barcelona's logo on the back - a blue head, invoking the Mediterranean sea; yellow, sunshine, open arms and leaping, red legs.
Atlanta 1996
Thickness: 5mmDiameter: 70mmWeight: 181gQuantity: 637Designer: Malcolm Grear Designers
Back to a conservative Nike design. On the back is the Atlanta emblem of an Olympic flame and stars and a graphical laurel branch to mark the modern Olympics centennial year.
Sydney 2000
Thickness: 5mmDiameter: 68mmWeight: 180gQuantity: --Designer: Wojciech Pietranik
The design stokes controversy, when critics point out the long-standing feature on the front of medals was not Greek, but a Roman coliseum. Australian coin designer Wojciech Pietranik put the Sydney Opera House and the Olympic torch on the reverse.
Athens 2004
Thickness: 5mmDiameter: 60mmWeight: 135gQuantity: 1,130Designer: Elena Votsi
The Greeks went Greek, with a new depiction of Nike, flying into the 1896 Panathenaic stadium to bestow victory on the strongest, highest and fastest. Classic Greek lettering spells out the Olympic ode under the Athens logo.
Beijing 2008
Thickness: 6mmDiameter: 70mmWeight: 200gQuantity: --Designer: Xiao Yong
The Greek goddess and stadium remain on the front. The coveted Chinese gemstone jade is inlaid into the back of each medal.
London 2012
Thickness: 7mmDiameter: 85mmWeight: 400gQuantity: --Designer: David Watkins
The biggest Summer Olympics medals to date. Artist David Watkins says the key symbols on front and back juxtapose the goddess Nike, for the spirit and tradition of the Games, and the River Thames, for the city of London. On the back of the medals is the 2012 branding, representing the modern city as a jewel-like, geological growth. The logo is shown against a 'pick-up-sticks' grid which radiates the energy of athletes and a sense of pulling together. The River Thames runs through the middle as a celebratory ribbon. The bowl-like background recalls ancient amphitheatres, with a square balancing the circle to give a sense of place. The sport and discipline is engraved on the rim of each medal, all of which will be produced by the Royal Mint at Llantrisant, South Wales.
Chamonix 1924
Thickness: 4mmDiameter: 55mmWeight: 75gQuantity: --Designer: Raoul Bernard
A skier stands in front of Mont Blanc with skis in one hand, skates in the other. Engraver Raoul Bernard put his name on the front, right.
St Moritz 1928
Thickness: 3mmDiameter: 50.4mmWeight: 51gQuantity: 31Designer: Arnold Hunerwadel
Norwegian rising star Sonja Henie wins her first of three skating golds at this Olympics. Fittingly, the medal shows a skater spreading out her arms amid snowflakes.
Lake Placid 1932
Thickness: 3mmDiameter: 55mmWeight: 51gQuantity: 35Designer: --
A busy scene with Nike appearing over the Adirondack Mountains; the Olympic stadium and ski jump below. The ripples on the edge represent the shape of ancient columns.
Garmisch-Partenkirchen 1936
Thickness: 4mmDiameter: 100mmWeight: 324gQuantity: 36Designer: Richard Klein
Favoured Nazi medal-designer Richard Klein depicts Nike driving a horse-drawn chariot over a triumphal arch, with winter sporting equipment underneath.
St Moritz 1948
Thickness: 3.8mmDiameter: 60.2mmWeight: 103gQuantity: 51Designer: Paul Andre Droz
Snowflakes return, with an ice-cream-shaped Olympic torch and the Olympic motto Citius, Altius, Fortius - faster, higher, stronger.
Oslo 1952
Thickness: 3mmDiameter: 70mmWeight: 137.5gQuantity: 48Designer: Vasos Falireus/Knut Yvan
The back features a pictogram of Oslo City Hall, the city's celebrated, blocky, landmark which opened less than two years earlier and was used as its Olympic emblem.
Cortina D'Ampezzo 1956
Thickness: 3mmDiameter: 60.2mmWeight: 120.5gQuantity: 40Designer: Costanttino Affer
Milanese designer Constantino Affer crowns his 'ideal woman' design with Olympic rings and puts Mount Pomagagnon, which towers to the north of Cortina, under a snowflake on the back.
Squaw Valley 1960
Thickness: 4.3mmDiameter: 55.3mmWeight: 95gQuantity: 60Designer: Jones Herff
The focus is on youthful competitors in this starker design. The space below the rings on the back is left blank for the sport's name.
Innsbruck 1964
Thickness: 4mmDiameter: 72mmWeight: 110gQuantity: 61Designer: Arthur Zegler/Martha Coufal
Two designers each take a side. Martha Coufal puts the Torlauf Mountains on the front. On the back, Arthur Zegler entwines the Olympic rings with the city's emblem of a bridge over the river Inn.
Grenoble 1968
Thickness: 3.3mmDiameter: 61mmWeight: 124gQuantity: 250Designer: Roger Excoffon
Typeface designer Roger Excoffon features a snowflake and red rose of Grenoble emblem on the front and a stylised pictogram of each sport on the reverse.
Sapporo 1972
Thickness: 5mmDimensions: 57.3mm x 61.3mmWeight: 130gQuantity: 89Designer: Yagi Kazumi/Ikko Tanaka
The front depicts lines in the snow. On the back, graphic designer Ikko Tanaka - a founder of Muji stores - combines the traditional rising sun, a snowflake and the rings in a modern logo.
Innsbruck 1976
Thickness: 5.4mmDiameter: 70mmWeight: 164gQuantity: 71Designer: Arthur Zegler/Martha Coufal
Martha Coufal, designing again, keeps the Innsbruck emblem and rings. The modernist reverse combines the Alps, the Bergisel ski area, and the Olympic flame.
Lake Placid 1980
Thickness: 6.1mmDiameter: 81mmWeight: 205gQuantity: 73Designer: Tiffany & Co. New York
No laurel here, but a pine cone sprig. The Adirondack mountains are pictured on the front and evoked in the Lake Placid logo on the back.
Sarajevo 1984
Thickness: 3.1mmDimensions: 71.1mm x 65.1mmWeight: 164gQuantity: 95Designer: Nebojsa Mitric
Nebojsa Mitric's highly-stylised design features the Games' snowflake emblem on the front and an athlete's head crowned with laurel on the back.
Calgary 1988
Thickness: 5mmDiameter: 69mmWeight: 193gQuantity: 89Designer: Fridrich Peter
The First Nation person's headdress is made up of winter sports equipment. The snowflake and maple leaf-like emblem is formed of intertwining 'C's, for Calgary and Canada.
Albertville 1992
Thickness: 9.1mmDiameter: 92mmWeight: 169gQuantity: 110Designer: Lalique
The first winter medals to use different materials: Lalique hand-made glass set in gold. The Olympic rings are pictured in front of mountains surrounding Albertville.
Lillehammer 1994
Thickness: 8.5mmDiameter: 80mmWeight: 131gQuantity: --Designer: Ingjerd Hanevold
Ingjerd Hanevold chooses granite as the base material to reflect Norwegians' love of nature. She hopes the ski-man design is "humorous, sober and recognisable".
Nagano 1998
Thickness: 8mmDiameter: 80mmWeight: 261gQuantity: --Designer: Kiso Kurashino/Kogei Museum
Traditional Kiso lacquer is used, sprinkled with gold and enamelled to make the designs. The 'snowflower' emblem of the Games shows athletes doing Olympic sports.
Salt Lake City 2002
Thickness: 10mmDiameter: 85mmWeight: 567gQuantity: --Designer: Scott Given/Axiom Design
One of the heaviest medals, shaped like rocks in Utah's rivers. Designs differ on the back, where Nike embraces a competitor for each sport. Like the Salt Lake torch, they continue the theme of "light the fire within", with an athlete breaking through snow and rock.
Turin 2006
Thickness: 10mmDiameter: 107mmWeight: 469gQuantity: --Designer: Dario Quatrini
The one with the hole; like an Olympic ring; representing the Italian piazza. Designed to draw attention to the place where the heart beats, as it hangs on an athlete's neck.
Vancouver 2010
Thickness: 6mmDiameter: 100mmWeight: 500-576gQuantity: --Designer: Corrine Hunt and Omer Arbel
Striking the medals nine times each gives them an undulating look, like the Vancouver landscape. Each unique medal incorporates a part of Corrine Hunt's mother artwork - an orca-inspired pattern. Recycled electronic waste is used to make the metal base material.