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Working Engine Model


STEM Nex V8 Combustion OHC Engine Motor Working Visible Clear Sound Model Kit

$89.95


Visible V8 Internal Combustion Ohc Engine Motor Working Model Haynes Kit Box New

$99.85


Smithsonian Jet Works Working Jet Engine Model Science Build Your Own Turbine Th

$48.99


SMITHSONIAN MOTOR WORKS BUILD A WORKING 4 CYLINDER MODEL ENGINE

$34.95


Smithsonian Motor Works Build A Working 4 Cylinder Model Engine Opened Box

$38.90


NIB vintage 1998 Popular Mechanics for kids motor build working model engine kit

$19.00


Stemnex V8 Model Engine | Build Your Own Working V8 Combustion Engine

$94.95


Haynes 4 Cylinder Internal Combustion Engine Working Model Assembly Kit HM11

$29.99


Haynes 4 Cylinder Internal Combustion Engine Working Model Assembly Kit HM11

$55.95


Vintage Boxed Mamod Working Model Minor 1 Steam Engine Complete Unused NOS

$99.99


VINTAGE c1880 WELCH SCIENTIFIC CUTAWAY ENGINE MODEL WITH LIGHT AS SPARK WORKS

$185.00


Haynes Build Your Own V8 Engine ~Working Model w/Ignition Sound New

$59.99


Smithsonian Motor-Works Gas Engine Model Kit Skill Level II

$54.99


Haynes Jet Engine | STEM Project| Build Your Own | Fully Working Model Kit

$69.95


Haynes Visible Working V8 Engine Plastic Model Kit 42839 HYE42839

$71.99


Franzis Flat 6 Porsche Boxer Engine 1:4 Scale Working Model Assembly Kit PE12

$139.49


Stuart Turner Walking Beam Live Steam Engine Model , Excellent Working Condition

$1,250.00


Working Hit and Miss Model Engine Gas Powered Coles Ready to Run Color May Vary

$2,499.95


Haynes 4 Cylinder VISIBLE ENGINE internal combustion motor working model Kit NIB

$140.59


Model Live Steam Engine Working Globe Valve 1/4-40 GV4

$30.38


VINTAGE TATONE AIRPLANE MODEL ENGINE FREE FLIGHT THE TICK OFF CLOCK WORK TIMER

$15.95


Smithsonian Motor Works 4-Cylinder Engine Model Kit Physical Science Age 8+

$32.99


VISIBLE V8 internal combustion OHC engine motor working model Haynes Kit box New

$98.95


NEW Smithsonian Motor Works 4-Cylinder Engine Model Kit Physical Science Age 8+

$39.99


Flame Licker Eater Cylinder Steam Power Stirling Engine Model Mechanism Work Toy

$72.75


Propeller Stirling Engine Model Hot Steam Power Mechanical Work Novelty Toy

$64.58


Smithsonian Motor-Works Battery Operated Working 4 Cylinder Engine Model UNUSED

$30.00


SMITHSONIAN INSTITUTION MOTOR-WORKS - BUILDING MODEL OF 4 CYLINDER ENGINE

$145.00


Smithsonian Motor Works Engine Model Kit Educational Fun Toy Children Kids Hobby

$39.35


300-500RPM Flywheel Rotary Stirling Engine Model Mechanical Work Physics Toy

$124.65


Hot Air Stirling Engine Model - Conversion of Heat Energy to Mechanical Work

$37.69


Smithsonian Motor Works Build A Working 4 Cylinder Model Engine

$39.90


Eisco Labs Steam Engine Model - Working Piston, Slide Valve, and Link Motion

$100.75


Smithsonian Motor-Works Model 4-Cylinder Engine

$35.00


Old Rare Vintage Metal + Plastic Model Engine Motor Working USSR ZID

$130.00


Stirling Engine Model Toy Kit - Conversion of Heat Energy to Mechanical Work

$61.95


Steam Engine Horizontal Working Model Vintage Brass Wooden Walking Stick Cane LD

$69.89


Royal Heavy Duty DC-12v RC Model Engine Starter, Tested, Works Great

$16.00


Brass & Wooden Walking Stick Cane Steam Engine Horizontal Working Model Vintage

$64.99


WILESCO STEAM BOILER + ENGINE Working Model. 9"H x 8"W. Made in GERMANY

$299.00


Smithsonian Motor Works Build A Real Working Model Engine

$39.99


Vintage Brass Wooden Walking Stick Cane Steam Engine Horizontal Working Model

$69.99


Hot Air Stirling Engine Model, Conversion of Heat Energy to Mechanical Work

$42.90


4 Stroke Gasoline Engine Model Toy - Demonstrate Engine Working Principle

$22.37


1911 ANTIQUE GEORGES CARETTE HOT AIR STIRLING ENGINE WORKING TIN MODEL XTR.RARE

$4,200.00