Does anyone know whose logo this is? Found on an old 10 spline ground adjustable. Any help would be great key appreciated. I believe it’s a / was a company outside of the USA from back in the 50’s. #whoselogoisthis #helpidentify #aviationhistory #vintageaircraft #vintagelogo #pilot #pilotlife #aviation_lovers #airplane #planeporn #mtpropeller #hamiltonstandard #warnerscarab #rockthesky #aviationart #groundadjustable #propeller













