Never seen a SW car radio before

[Reece]

Around 1940-41, Chevrolet and I think Caddy and Buick offered factory radios with short wave bands.

I had a short wave adapter on the radio in my '69 Fiat Sport Coupe. The adapter came from J.C. Whitney and was a long narrow underdash device with a number of buttons on the front. It inserted between the antenna and the radio. Push a button for the 31 meter band, the 25 meter, etc. Then the radio tuned that band up and down the regular BC band.