I may buy an older 1960a cab from a guy on Craigslist. The price is $275 loaded. Probably not V30's but regardless, it's an older mono, 16ohm cab. Can you tell me things to look for to decide whether or not to buy it, or whether it's genuine or not? I will be trying it with my head. Thanks! Here's the only pic I have right now. Checking it out in person tomorrow (Wednesday).