A collection of five twin cylinder air cooled engines,

A collection of five twin cylinder air cooled engines,
including a glow plug engine with manufacturer's label, carburettor, exhaust manifold and propeller mount, the crankcase end plate stamped 104 -- 6¼in. (16cm.) long; a diesel engine with centrally mounted carburettor and propeller mount; a diesel engine with carburettor and propeller mount, the crankcase end plate stamped RG03; a glow plug engine with carburettor and propeller, one crankcase engraved C48310N; and a spark ignition engine with central carburettor, distributor and propeller mount

See illustration (5)