I am looking for any information that I can find concerning the value of some chips that I have from the Delta Saoloon in Virginia City. They come in blue and red and are marked with a backward "D" and then a "C". My grandfather ran the table games there at the time so I can authenticate them. I also have several of the licenses that were granted by the county to run the games back then at the Delta. I would appreciate any information I can get. Thanks, Bill.