I believe that the model number is YG511. My guess is that this not a sculpted, art deco-ish Bakelite (forerunner to plastics) radio, but rather a rectangular shaped wood (or wood like plastic) and metal table radio. If this is the case, we are talking early 60's. Even if working without too much hum, we are talking $25 or so on eBay.
Regards, Rich
Regards, Rich