Well, it looks like a Jewish Star and a Mercedes Benz emblem. That doesn't make sense though since Mercedes used Jewish slave labor during WW II. Unless it predates that period.
The History Channel's Headquarters are in Manhatten, New York. It appears to have been issued to commemorate the nation's bicentennial. While it looks to be bronze, it is made of plastic.
The American Indian Relief Council was located at 2401 Eglin St. Rapid City, SD 57703. The name has changed, and is now known as Northern Plains Reservation Aid, but the address is the same. There are no known images of Sacagawea (a Shoshone woman), and the face was modeled after a modern Shoshone-Bannock and Cree woman by the name of Randy'L He-dow Teton. The baby on her back is representing Sacagawea's son, Jean Baptiste. Typically this piece is seen as a necklace, and I speculate that they were sold as part of a fund raising effort as they do not receive any government funding. Their site shows a gift catalog, but the link did not work for me, so I could not find if they are still available or what the original selling price may have been. On ebay, a few of the ones without the chain sold for in the $2 - $5 ballpark (including shipping), although most offered there received no bids.
