YS 120 Supercharged Four-Stroke R/C Model Airplane Engine

369. O.S. FS 120 Four Stroke RC Model Airplane Engine

372. O.S. Surpass 40 Four Stroke RC Model Airplane Engine

YS F-120 Four Stroke RC Engine

OS FS-120 Surpass II Four Stroke RC Airplane Engine 35521 with Pump

Vintage Cox .049s & Hornet many other Control Lot Collection 1/2a Engines lot #4

Vintage Cox & K&B Twin & many other Control Lot Collection 1/2a Engines lot #1