OS Engine - OS max H 60 F GP Goldhead - OS H60F GP - Nice

Vintage 70s Series 72 OS Engine max H 60 GP Goldhead H60 GP RC Motor w Muffler

OS Engine - OS max-H 60 RC Motor - Nice

Vintage O.S. Series 72, max H 60 GP engine and mufflers and box. Nice!

NEW Vintage 70s Series 72 OS Engine max H 60 Goldhead H60 GP RC Motor w Muffler

OS Engine O.S. Max 25F RC Airplane Engine Glow motor 2B Carb .25ci 4.07cc

OS Engine - OS max 60 FSR - Clean!

Vintage O.S. max H 60 GP engine and muffler and mount! Nice! Perry carb. too!