American Silver Eagle Proof Coin

silver eagle
The American Silver Eagle is the official silver bullion coin of the United States. It was first released by the United States Mint on November 24, 1986. It is struck only in the one-troy ounce size which has a nominal face value of one dollar and is guaranteed to contain one troy ounce of 99.
(Silver Eagles) modern 1-oz silver bullion coins.
(SILVER EAGLES) designation for the US Army Aviation Precision Demonstration Team, organized in May 1972 for public display of typical helicopter skillcraft, performed nationwide at air shows, patriotic events, and other fairs.

proof coin
(Proof coins) coins that are struck with greater pressure than normal using specially polished dies to make the design more highly polished or mirror-like
Proof coinage means special early samples of a coin issue, historically made for checking the dies and for archival purposes, but nowadays often struck in greater numbers specially for coin collectors (numismatists). Many countries now issue them.
(Proof Coins) A coin that is struck off of specially prepared coin dies and planchets. Proofs are usually struck twice, with slower speed but more pressure.

american
a native or inhabitant of the United States
of or relating to the United States of America or its people or language or culture; "American citizens"; "American English"; "the American dream"
A native or citizen of the United States
The English language as it is used in the United States; American English
A native or inhabitant of any of the countries of North, South, or Central America
of or relating to or characteristic of the continents and islands of the Americas; "the American hemisphere"; "American flora and fauna"