Rich, these are not dollar tokens. They are one ounce silver rounds. This Sahara is part of a set link below. These have been found with a smooth outer rim and also a reeded outer rim. You already have the sold values posted before I arrived.

http://www.silverstrikers.com/Web/Catalogs/Sets/Misc/LuckyDiceCollectionLVnv/Lucky-Dice-Collection-LVnv-Sets-Page-01.php/