The product is a 2026 Proof Set Semiquincentennial 10 Coins with a Dual Date Penny, minted in San Francisco by the U.S. Mint.

The coins are composed of nickel and copper, in uncirculated condition, and struck in proof quality.

This special set commemorates the 250th anniversary of the United States Mint, featuring various denominations and a unique variety specifically for the Semiquincentennial edition.

A valuable addition to any coin collection, this set captures a significant milestone in American numismatic history.