I have 5 old Las Vegas tokens that I can't identify. They are brass or bronze with a coating of something. The date is 1878, It says Las Vegas Dollar with a ladies head on front and small sets along the bottom of cards, roulette wheel, Nevada State, and dice. The back says Entertainment Capitol of the world, and has a show girl with feathers. Please any help or direction you can give will be greatly appreciated. Attached is a picture of the front.

Mike