[TA Forbes]

Or possibly the 83 was used as a replacement? The pins and filament V are the same. Check the tube socket and see if there is embossing there listing what tube should go there. Silvertone used the 83 tube in some of their high-tube count sets like the 1641, 1722, 1726, and 1732.

Silvertone made many off-variants of the same set. I am willing to bet that besides the escutchion difference, that they are the same set.

Also, note that everything else, including the grillework, is the same as the example in the Radio Museum.