It is a 4 oz. .999 silver Washington mint liberty round 24 K gold layered Sacagewea w box valued at $195.

Washington Mint 2000 Sacagawea 4 oz. .999 Fine Silver Liberty Coin. This Giant Golden Coin is an exquisite adaptation of the United States Dollar coin - the first US Dollar coin in a generation, and the first ever gold colored coin. It features a portrait of Sacagawea, the Native American guide who accompanied Lewis and Clark on their first exploration to the Pacific Ocean nearly 200 years ago. The stunning 2000 Giant Golden Coin is an artistic masterpiece that will always be treasured as the first of the series and the first of the millennium.

Coin Specifications Composition - .999 pure silver layered with 24k goldWeight - one quarter pound (4 oz troy) Diameter - 3.5 inches Obverse - Adaptation of the United States Dollar coin, featuring a portrait of Sacagawea Reverse - American EagleMintage - 100,000