I think you are right about your guitar. It is a Parlor guitar and probably originally had a Supertone label in the sound hole. Supertone was a brand made by Harmony and sold through Sears. These instruments are known as stencil guitars. The most popular themes for the stencils were Hawaiian, Cowboy and Romantic European destinations (think gondolas).
Here is an example of your guitar made in 1933 with the label intact:
Here is a Reverb link to a guitar like yours selling for around $250. Of course, given the damage on your guitar you wouldn't be able to sell it at this price, but like you said, it's a NFS family piece so you don't need to be too concerned about market value.
hope this info helpsStatistics: Posted by VintAxe — Thu Jul 12, 2018 11:00 am
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