This medal's obverse bears upper body of colonial soldier wearing tricorne and holding musket. At left, 1776 / (ANS seal); at right, 1976; signed at bottom, Americo
The reverse bears Liberty pole with ribbons attached; at lower right, the seal of Ne York State. On ribbons, Liberty / New York State American Revolution / Bicentennial / 1776 1976
This medal was the 51st official medal issued by the American Numismatic Society in 1976. It was struck in six different variants. Five variants were struck by the Medallic Art Company of Danbury, Connecticut, the silver proof variant as struck by the Franklin Mint. Beyond sponsoring the design competition in 1972, the American Numismatic Society really had limited input into and no control of the production of this medal. No mintages are reported for any of the variants. At least the bronze pieces are very common and the the silver pieces don't seem to be too uncommon. The only rare variant is probably the gold 25mm piece which I have only seen at auction once in five years.
References: ANS 51