Vintage K & B 61 RC Airplane Engine with Muffler.

HB pdp, .61 Nitro R/C Boat/Helicopter/ Plane Engine

K&B .40 R/C Airplane Model Engine No. 4011 with Muffler In Parts #P14

VINTAGE DUKE FOX EAGLE 60 R/C AIRPLANE NITRO ENGINE WITH MUFFLER & BOX #26099

OFNA .21 ABC NITRO GLOW R/C CAR MODEL ENGINE + MUFFLER PERFECT RADIO CONTROL

Model airplane engine CSTKAM / TsSTKAM 2.5K. 2.47 ccm. Glow Engine. C/L motor.#1

K&B Allyn .61 Model Airplane Engine With Box And Accessories No Muffler

K&B 40 R/C Model Airplane Engine with K&B carburetor and Muffler