Info from the YouTube post.

“Swing Master, don’t know what year though I would think it’s probably from the 40′s. On the back of the chassis, it has the number 4650, then says “No. 726303″

“recently replaced a couple of tubes, and put a new cord on it since the rubber was disintegrating off the original. The rest of the radio is original, including all of the original paper caps. Video is of it playing for the first time since the late 70′s”