Although there is no designation on the instrument, we believe this to be a “Tonemaster” model from the Oahu Publishing Company of Cleveland Ohio made in the late 1930s or early 1940s when Hawaiian music was a big craze. Like some other models of its time, the volume and tone knobs are AM radio dials marking frequencies of 55 through 1500 Mhz. This one is particularly attractive in that it has decorative stencils on the body. We were able to find only one other example of this in our internet searches. Please make no mistake, this instrument is a bit funky in several ways; It has a fair share of marks, dings, finish crazing, tarnish etc. The tuning machines have been replaced at least once in it's lifetime and there are multiple small screw holes around and under the tuning machines. The metal plate on the back also appears to have been replaced at one time. One thing for sure though, this instrument has a really sweet lively tone and amazing sustain. The electronics work very well with only some very minor crackle in the pots that a good cleaning would probably cure very quickly. Other examples of this model sometimes have a wooden pickup cover but this one has a heavy metal "horseshoe" style cover making this a pretty unique lap steel. We also find it interesting that there are actual metal frets one the fingerboard even though this is a slide guitar. Added bonus: it comes with a nice old case with plush interior - perhaps made by the Gibe Company of Chicago. The inside of the case is very nice and the outside has a some of the fabric cover peeling but it remains in servicable condition.