Bicentennial quarters were released in two different metal alloys. The first being the standard copper-nickel clad for regular circulation and S-mint proofs of the same metal. To make more money from the issue, the San Francisco Mint also produced a 40% silver (with copper-nickel) composition for mintage of proof and non-proof coinage. These were released as late as 1982 until the rising bullion prices of that time rose above selling prices. The West Point branch of the Philadelphia Mint also participated in the production but without a designating mintmark.
Regular-issue mintage of the copper-nickel coins was extremely high in anticipation of tremendous demand by both collectors, hoarders and novelty-seekers alike. Never before or since has the Mint produced a commemorative coin for regular issue.
Varieties: 1976-D. Doubled die obverse. Very rare. (FS#25¢-028, Breen-4452)
Mintage:
| Philadelphia | Denver | Clad Proof | S - Silver | Silver Proof |
| 809,784,016 | 860,118,839 | 6,995,180 | 4,908,319 | 3,998,621 |