10 Dollars - Elizabeth II Hurdles

Part of Canada's official series commemorating the 1976 Montreal Olympics, this issue was among 28 coins released across seven themed sets between 1973 and 1976 to help finance the Games. Montreal's organizing committee turned to the mint program partly because construction costs had spiraled so far beyond initial estimates — the stadium roof alone wasn't completed until 1987 — that every revenue stream mattered. The two catalog variants (RC-1413a and RC-1413b) reflect differences in water lines on the reverse, a distinction introduced when the original master die was modified mid-production.