A spark ignition engine with unusually large exhaust manifold,

A spark ignition engine with unusually large exhaust manifold,
-- 5½in. (14cm.) long; a Moki 10 glow plug engine mounted for marine use; a spark ignition engine embossed H/S, with twin exhaust stubs; a Mighty Midget engine on stand and another stand-mounted engine

See illustration (part lot) (5)