1930's Vintage Antique Supertone Harmony Monterey mandolin Kay Ohau 8 strings

Description

I can't seem to find this interesting tear drop with strange square shoulders. Set Neck Like Gibson..
Possible Kalamazoo , No Name Instrument. Nice pick guard and case is old but has duck tape..
This is an amazing player , tunes and sounds great. Tuners look like the real deal....