I admit it has several strong correlations to the Glastrons of that time frame, but it also has several differences I cannot account for, the engine, drive, stern, and dash just don't line up with historical record. Could it be a one off copy or prototype design, I don't know for sure. I've looked for awhile to find one of that vintage that identifies the origins, but have failed in that attempt as well. One thing for certain, it is a nice boat you can be proud of, and it's in exceptional condition. Enjoy your boat, and maybe for fun dig into it's history a bit more and let us know. Thanks