Here's the catalog illustration for the #213 from the 1936 catalog
As NWL noted it is a universal bridge and, given the type of litho treatment to the bridge shack I'd say it is probably that year.
Mine is a #213 also but slightly later vintage. The shack litho is different and if you look at the base on either end you can see metal strips instead of wood cross sections like you have on your bridge.
The instruction sheet that comes with the bridge recommends the new owner nail the shack to the piece of wood. I hope your earlier owner didn't do that because you will have to remove the nail to get at the light bulb inside the shack to replace it.
