Authorized maximum mintage figures for commemorative coins of the classic era vary greatly - from 3,000 for the Panama-Pacific International Exposition Gold Quintuple Eagle coins (1,500 Round / 1,500 Octagonal) to six million half dollars for the Oregon Trail Memorial. Some failed proposals of the classic era made requests for 10 million (or more) coins!
When the modern era of US non-circulating commemorative coins began, the first programs included very large mintage authorizations: 1982 George Washington Half Dollar - 10 million; 1983-84 LA Olympics Silver Dollar - 50 million; 1986 Statue of Liberty - Ellis Island Silver Dollar - 10 million; 1986 Statue of Liberty - Ellis Island CuNi Clad Half Dollar - 25 million and 1987 US Constitution Bicentennial Silver Dollar - 10 million.
Large and variable authorizations continued, but in 1997 the Omnibus Consolidated Appropriations Act was passed and it included specific limits for commemorative coin programs going forward (beginning January 1, 1999). The Act specified:
- not more than 750,000 clad half-dollar coins
- not more than 500,000 silver one-dollar coins
- not more than 100,000 gold five-dollar or ten-dollar coins
The Secretary of the Treasury was given the authority, however, to waive any/all of these restrictions if "independent, market-based research conducted by a designated recipient organization of a commemorative coin program" finds that the specified mintage levels are not adequate to meet public demand.
It is because of this 1997 Act that most modern US commemorative coin bills include these specific limits, though some opt for lower amounts (e.g., 400,000 Silver Dollars and/or 50,000 gold coins).
These limits have generally proven adequate within current market conditions, with only the 2014
Baseball Hall of Fame coins registering sell-outs for the Gold Half Eagle (50,000 authorization) and Silver Dollar (400,000 authorization).
For other of my posts about commemorative coins and medals, including many other Quick Bits posts, see:
Commems Collection.