Tell me the code numbers, and I'll can tell you exactly when it was made. Souvenir Plates are my first love in collecting. That's a smaller version of their larger 9 1/2" to 10" service plates, and it would usually cost $15 - $25 in the SF Bay Area (and probably more in Nevada). Nice find! Buzz

PS: I'm headed off to work, so I won't be able to respond until this afternoon.