The Original Hound Dog trademark has appeared on many different resonator guitars, but according to sources, it has only appeared on a line of acoustic flattops that were produced in Japan during the mid-1970s. These acoustics are similar to many popular Martin acoustics from the 1970s including a D-35-style guitar with a three-piece back. Serial numbers are six digits inked on the back of the headstock similar to Gibson's serial numbers from the 1960s and 1970s. Any further information on the Original Hound Dog trademark can be submitted directly to Blue Book Publications.
Instruments previously produced in Japan during the mid-1990s.