Vaughan Motor Works portable drag saw at Mankato Threshing Bee 

VAUGHAN MODEL D LIGHTWEIGHT "STANDARD MACHINE"
Constructor: Harsch machine works,Portland,Oregon,USA.
Distributor: Mill & Mine supply, inc.
Introduced:1915
Engine type: 2 cycle hit & miss water cooled.
Power: 3 1/2 hp
Bore: 3 1/4 inch
Stroke: 3 1/2inch
Fuel system: mixer
Ignition: buzz coil with crank timer, 6 volts
Lubrication: grease cup on crank bearing, oil dripper on connecting rod.
RPM: 130 to 140 strokes per minutes.
Weight: 180lbs
Drive:flywheel,chain reduction

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