The Castilian was a Gretsch parlor sized model, branded "Gretch American". It appears to have been first offered in 1927, hung around briefly until about '33 or '34 and then was gone as the American Orchestra era took hold.
Although examples and documentation are scarce, there is evidence that there may have been two variants, one with tortoiseshell binding and one without.
The model number places toward the lower-end of the prewar Gretsch lineup, but even so, Castilians appear to have featured an X-braced spruce top.
Three examples are in the Gretsch-GEAR database.
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