I'll echo what others said. Nothing worth buying. Late 50's-early 60's. Probably institutional from the simplicity and tank-like build quality. These basic home or institutional models (suit-case body, built in speakers, etc) aren't worth buying.The ones you want have lots of gauges, buttons/switches and dials and most likely (but not in all cases) a brushed silver metal front. See images below. They most likely will not have any reels on them if you find them at a thrift.