This one was probably used to print the actual keno tickets. (Metal edges look like they would secure the block in a press of some kind). Although there is nothing on the metal side to identify it as a Nevada Club Reno piece, there is a paper backing on the wood block which does. And, the three blocks were all found together. Sorry, this one is a 'normal' image, so you'll have to hold it up to a mirror if you want to check out some of the horses names .