The Medal of the City of Paris (French: Médaille de la Ville de Paris), established in 1911, is an honour in the gift of the Mayor by nomination of members of the Council of Paris and devolved administrations. Awarded in four grades, ie. bronze, silver, large silver and vermeil, it recognises those achieving a "remarkable act concerning the capital" as well as being presented to centenary Parisians and couples celebrating their golden (50 years), diamond (60 years), platinum (70 years), alabaster (75) or oak (80) wedding anniversaries. Source: Wikipedia (en)