O.S. FT-120 GEMINI ENGINES MANUFACTURING CO. LTD. TWIN-CYLINDER MODEL AIRPLANE ENGINE,

O.S. FT-120 GEMINI ENGINES MANUFACTURING CO. LTD. TWIN-CYLINDER MODEL AIRPLANE ENGINE, twin-cylinder four stroke, crankcase embossed "FT-120" on one side, and reverse with "O.S.", back of case featuri

ELF ENGINE CO. MODEL 20 TWIN / TWO CYLINDER MODEL AIRPLANE ENGINES, LOT OF TWO, each with embossed maker's mark to crankcase end fin, each with impressed serial number to crankcase end including "663"

MICRO MODEL CO. WASP TWIN / TWO CYLINDER 1947 MODEL AIRPLANE ENGINE, red crackle paint with polished components, finned heads with four bolts, two-part casting with ten-bolt construction, mounting bra

CLIPPER MANUFACTURING CO. "CLIPPER GENERATOR XX770" WITH GLOW PLUG MODEL AIRPLANE ENGINE, die-cast case, cylinder bypass with Clipper XX770 decal, dual exhaust, attached fuel tank with additional atta

CLIPPER MANUFACTURING CO. "CLIPPER SKY KING XX770" WITH SPARK PLUG MODEL AIRPLANE ENGINE, die-cast case, cylinder bypass with Clipper XX770 decal, dual exhaust and attached metal fuel tank, slight var

L. M. COX MANUFACTURING CO. "TEE-DEE" THIMBLE DRONE MODEL AIRPLANE ENGINES, LOT OF THREE, comprising two 049 examples, and a .09 example with an 09 Tatone mount, each with black cylinder topped by fou

L. M. COX MANUFACTURING CO. "OLYMPIC" THIMBLE DRONE .15 1959 MODEL AIRPLANE ENGINES, LOT OF TWO, each with black cylinder topped by four silver fins, blue anodized drive washer and red anodized crankc

L. M. COX MANUFACTURING CO. "TEE-DEE 21" THIMBLE DRONE .020 1961 MODEL AIRPLANE ENGINES, LOT OF THREE, each with black cylinder topped by four silver fins, each with a gold anodized crankcase and driv

ATOM TWIN-CYLINDER MODEL AIRPLANE ENGINE, possibly by George Conrad and Ted Belcher, sand-casted construction, dual opposing finned cylinders with 12 spoke heads, fitted with two Champion spark plugs.

HERKIMER TOOL & MODEL WORKS OK TWO / TWIN-CYLINDER MODEL AIRPLANE ENGINE AND PARTS, comprising one engine, each cylinder case embossed "OK" and with patent information, gold anodized finned cylinder h

HERKIMER TOOL & MODEL WORKS OK TWO / TWIN-CYLINDER 1946 MODEL AIRPLANE ENGINE, each cylinder case embossed "OK" and with patent information, cast-in timer arm with straight handle, each cylinder fitte

HERKIMER TOOL & MODEL WORKS OK TWO / TWIN-CYLINDER 1939 MODEL AIRPLANE ENGINE, each cylinder case embossed "OK" and lacking patent information as made, finned cylinder head, wire timer arm with ball h

HERKIMER TOOL & MODEL WORKS OK TWO / TWIN-CYLINDER 1940 MODEL AIRPLANE ENGINE, each cylinder embossed "OK" and with patent information, wire timer arm with ball handle, case with patent number, finned

A MODEL TWIN CYLINDER VERTICAL COMPOUND STEAM ENGINE, ENGLISH, 20TH CENTURY, by Belliss & Co., a wheel valve controls steam entry to the high pressure slide valve chest, the blued-steel cylinder lagg

American. 1890s. Solid brass, painted. Mounted to fitted walnut base. An exceptionally high quality live steam model featuring twin cylinders and a reverse-action switch. 7 1/2 x 14 x 10 1/4". Base ha

MORTON AIRCRAFT CORP. "M-5" FIVE CYLINDER RADIAL MODEL AIRPLANE ENGINE, die-cast construction, five-cylinder, four cycle overhead valve radial, nine unevenly spaced cylinder fins, no serial number loc

Steam powered, TOC, very detailed, metal and paint show signs of wear throughout, great color and look, displays very well and functions as it should, 20x19.75x10 mounted on wooden gallery, rated 8.75

Vintage Gas Powered Morton Radial M5 Model Airplane Engine. Unmarked - Believed to be Morton. 5 Cylinder's. Appears to be intact. Engine measures 7" tall. All invoices must be paid within 24 hours of

1 1/2-Inch Scale Model of a Steam Showman’s Engine Coal-fired, twin cylinder high and low-pressure engine, Stephenson’s slide-valve gear, two-speed gearbox, flame-tube boiler, fusee-and-ch

1 ½-Inch Scale Model of a Live-Steam Traction Engine, c. 1984 Large working model of the British "Jennifer" traction engine, coal-fired, twin-cylinder engine, Stephenson’s slide-valve gear,

1-Inch Scale Model of a Live-Steam Traction Engine, c. 1980 Large working model of the British "The Minnie" traction engine, green finish, coal-fired, twin-cylinder engine, Stephenson’s slide-va

2-Inch Scale Model of a Fowler Steam Showman’s Engine "Princess" by John Folder, Leeds, coal-fired, twin cylinder engine, Stephenson’s slide-valve gear, two-speed gearbox, flame-tube boile

Large Working Model of a Stationary Twin-Cylinder Undertype Steam Engine, c. 1975 Extremely detailed model, brass, steel and cast-iron parts, partly finished in green, coal-fired, soldered brass flame

Built in the 1920s by Mr. Hampson, chief engineer at The Castle Rubber Co LTD in England. This example was exhibited at the Model Engineering Exhibition in 1927 and was awarded the bronze medal. Dimen