DAVEBAYAREA . . . that's a nice radio.
I have seen home radios with the dial starting on the left at 1600, but not many.
I have a number of old radios with station call letters on them, got them years ago on the west coast, they show many west coast AM's
The fact that some radios started with 1600 on the leftside, car radios mainly, I think was just the way the manufacturer wanted it. AUTOMATIC RADIO a company that was in Boston made car radios that were perfect fits for cars in the 50's & 60's. Many of their car radios - the dial had 1600 on the left & 550 on the right of dial.
I have a 1955 FORD car radio ( that works great ! ) on a PS, that is unusual, it has a circular dial. The other thing that was common with many car radios was if you got the DELUXE model you got a push-pull (2 tubes) audio output stage, where as the " BUDGET " model had one audio output tube.
My 1955 FORD circular radio also has CHROME push buttons, (Chrome over black plastic) on the DELUXE model, the BUDGET model had BLACK plastic buttons.
The circular dial was unique in the 50's but some car radios going back into the 30's had them too.
I remember this radio when I was a kid, one of my Uncles had a 1955 FORD!
here they are on E-Bay . . .
Ford Vintage Car & Truck Radio & Speaker Systems for 1955 for sale | eBay
Got another old BIG wooden table model that has an AM radio & 78 RPM record cutter / player in it made by ROCKOLA . . . the people that also made jukeboxes. I had no idea they made radios too, this one I got working too.
I found a guy in Des Moines, IA that was an expert on ROCKOLA products and he provided me at no charge, the schematic and history of ROCK-OLA's short lived trip into radio manufacturing.
If I recall correctly they only made radios for about 5 years around the 1930's / 40's.
Al