This appears to be one of the earlier Harmony guitars, before the Stella brand name came to the company. This close-up of the solid spruce top shows the tortoise shell pickguard, which is held on with screws, and the adjustable, archtop-style bridge which may or may not be original. At first glance, I assumed the bridge was a replacement, but then I noticed that the neck attachment is also similar to a typical archtop, with the lower part of the fingerboard "floating" above the face - so I could be wrong about that. The back of the guitar shows the sunburst theme continued both on the body and the neck. This close-up of the back reveals that it is bookmatched fiddle-back maple, as are the sides. The peg head shape is what convinced me that this is a Harmony. I own one old arch top, which is clearly a Harmony Patrician in a different guise, that has this same exact head shape. I have also seen this shape used on many other Harmony manufactured house brand instruments.