This is the 1992 Canadian $100 City of Montreal 350th Anniversary Comemorative Gold Coin.
The reverse features Paul de Chomedey de Maisonneuve, the founder and first governor of Montreal, holding the plans for the Fort of Mount Royal. The background depicts the modern-day skyline of Montreal.
It is struck in 14-karat gold (58.33% gold, 41.67% silver).
The opposite side displays the right-facing profile of Queen Elizabeth II, designed by Canadian artist Dora de Pédery-Hunt.
