Try the Colorado Chip Exchange and hit the Deadwood link. http://search.netscape.com/ns/boomframe.jsp?query=COLORADO+CHIP+EXCHANGE&page=1&offset=1&result_url=redir%3Fsrc%3Dwebsearch%26requestId%3Db3fed7d63c91e671%26clickedItemRank%3D1%26userQuery%3DCOLORADO%2BCHIP%2BEXCHANGE%26clickedItemURN%3Dhttp%253A%252F%252Fwww.cochips.com%252F%26invocationType%3D-%26fromPage%3DNSCPIndex2%26amp%3BampTest%3D1&remove_url=http%3A%2F%2Fwww.cochips.com%2F

Campiglia & Wells "The Official U. S. Casino Chip Price Guide, 2nd ed. has a complete list of Deadwood chips available as of the date of that printing. That's a great guide since it shows scans of at least one chip from each of the casinos. It needs updating, however.