Question: From 1928 to 2000 the Olympic Games medals were designed by who?
About the article "Colosseum", section "Works modeled on, or inspired by, the Colosseum".

Candidate passages:
At the modern Olympic Games, winners of a sporting discipline receive a gold medal in recognition of their achievement.
At the Ancient Olympic Games only one winner per event was crowned with kotinos which was an olive wreath made of wild olive leaves from a sacred tree near the temple of Zeus at Olympia.
Aristophanes in Plutus makes a sensible remark why victorious athletes are crowned with wreath made of wild olive instead of gold.
Herodotus describes a story that explains why there were only a few Greek men at the Battle of Thermopylae since "all other men were participating in the Olympic Games" and that the prize for the winner was "an olive-wreath".
When Tigranes, an Armenian general learned this, he uttered to his leader: "Good heavens!
what kind of men are these against whom you have brought us to fight?
Men who do not compete for possessions, but for honour".
Hence medals were not awarded at the ancient Olympic Games.
At the 1896 Summer Olympics, however, winners received a silver medal and the second place finisher received a bronze medal.
In 1900, most winners received cups or trophies instead of medals.
The next three Olympics (1904, 1908, 1912) awarded the winners solid gold medals, but the medals themselves were smaller.
The use of gold rapidly declined with the onset of the First World War and also with the onset of the Second World War.
The last series of Olympic medals to be made of solid gold were awarded at the 1912 Olympic Games in Stockholm, Sweden.
Olympic Gold medals are required to be made from at least 92.5% silver, and must contain a minimum of 6 grams of gold.
All Olympic medals must be at least 60mm in diameter and 3mm thick.
Minting the medals is the responsibility of the Olympic host.
From 1928 through 1968 the design was always the same: the obverse showed a generic design by Florentine artist Giuseppe Cassioli of Greek goddess Nike with Rome's Colloseum in the background and text naming the host city; the reverse showed another generic design of Nike saluting an Olympic champion.
From the 1972 Summer Olympics through 2000, Cassioli's design (or a slight modification) remained on the obverse with a custom design by the host city on the reverse.
Noting that Cassioli's design showed a Roman amphitheater for what originally were Greek games, a new obverse design was commissioned for the 2004 Summer Olympics in Athens.
For the 2008 Beijing Olympics medals had a diameter of 70mm and were 6mm thick, with the front displaying a winged figure of victory and the back showed a Beijing Olympics symbol surrounded by an inset jade circle.
Winter Olympics medals have been of more varied design.
The silver and bronze medals have always borne the same designs. 
The ranking of the 1928 arts competitions is based on the official report "The Ninth Olympiad" (1928) of the Dutch National Olympic Committee.
Art competitions were held during the Olympic Games from 1912 until 1948.
For the 13 arts events a total of 29 medals were awarded: 9 golden medals, 10 silver medals, and 10 bronze medals.
These numbers are inequal, because not for all events three medals were awarded.
There was only a silver medal awarded for dramatic works in literature and only a bronze medal for composition for orchestra in music.
And also in music, no medals were awarded for compositions for song and composition for one instrument.
The most medals (8) were won by contestants from Germany, the most gold medals (2) were won by contestants from the Netherlands.
The countries are ranked by the number of gold medals won by the athletes of that country.
If countries are tied, first the number of silver medals is taken into consideration and then the number of bronze medals.
If, after the above, countries are still tied, equal ranking is given and they are listed alphabetically.
"To sort this table by nation, total medal count, or any other column, click on the icon next to the column title.
"</noinclude>Source: "The Ninth Olympiad" (1928) 
The Royal Canadian Mint manufactured the medals for the Vancouver 2010 Olympic and Paralympic games.
All medals for the 2010 Winter Games were manufactured in the Mint's Ottawa facility.
The medals were designed by Corrine Hunt and Omer Arbel.
The medals are based on two large master artworks of an orca whale (to be used on the Olympic medals) and raven (to be used on the Paralympic medals).
Each of the medals has a unique hand-cropped section of the abstract art, making every medal one-of-a-kind.
Size: 100 millimetres in diameter and about six mm thick for Olympic medals; 95 mm in width and average of six mm thick for Paralympic medals.
Weight: Between 500 grams and 576 g depending on the medal.
These are the heaviest medals in the history of the Olympic winter games.
The Mint also produced participation medals for athletes and volunteers of the Game. 
The 1928 Winter Olympics medal table is a list of National Olympic Committee's nations ranked by the number of medals won during the 1928 Winter Olympics, held in St. Moritz, Switzerland from February 11 to February 19, 1928.
A total of 464 athletes from 25 countries participated in these Games, competing in 14 events in 6 disciplines.
Two gold medals, no silver medals and three bronze medals were awarded in the men's 500 metres speed skating event as a result of a two-way tie for first place and three-way tie for third place. 
At the time, medals were awarded to these artists, but art competitions are no longer regarded as official Olympic events by the International Olympic Committee.
These events do not appear in the IOC medal database, and these totals are not included in the IOC's medal table for the 1928 Games.