The bill calls for 50,000 gold $5 coins, 400,000 silver dollars and 750,000 clad half dollars.
Surcharges of $35, $10 and $5, respectively, would go to the Pro Football Hall of Fame for the purposes of financing the construction of a new building and renovating existing facilities.
The legislation notes the Pro Football Hall of Fame opened Sept. 7, 1963.
There is only one co-sponsor thus far. The rules require two-thirds of the Senate membership to signal their support before it will be brought up for a vote.
A House of Representatives version of the bill introduced in February has 205 co-sponsors, which is not quite half the membership of that body.
The proposed issue is not tied to any anniversary.