ELF ENGINE CO. MODEL NO. 10 - SERIES 2 / CLASS A 1941 MODEL AIRPLANE ENGINE, front shaft with webs and embossed "ELF", vertical mounts, crankshaft case end impressed with SN "140", finned head with four bolts, plastic amber fuel tank with air-cleaner unit, fitted with a slanted Champion spark plug. Crankshaft turns freely and is untested for functionality. Fitted in a corrugated box with original paper label marked "ELF Class "A" Model Aircraft Engine/ Elf Single", manufactures brochure, and parts list, additional parts include a U. S. Ignition Coil No. 105 and a set of four legs including two with green paint. 1941. 2 3/4" x 3 1/2" overall.
Literature: Parallels Dannels - American Model Engine Encyclopedia, p. 72, fig. 5.
Provenance: From the collection of Fred Kaiser, East Sandwich, MA.