ATWOOD AND ADAMS MFG. "CHAMPION" MODEL AIRPLANE ENGINES AND PARTS, UNCOUNTED LOT, comprising three engines, including a 1940 example with cylinder case embossed "CHAMPION", seven-fin cylinder and 12-spoke head with six bolts, rectangular-form exhaust; remaining two examples each with cylinder case bypass embossed "SUPER CHAMPION", 11-finned cylinder and 13-fin head with six bolts, oval-form exhaust, vertical stove-top venturi; latter two examples fitted with an offset Champion spark plug and spoke example with a central Blue Crown spark plug. Each crankshaft is frozen, and each is untested for functionality. Along with 13 assorted bags of parts from a container marked for Champion .624 and of unknown association, parts include two crankshaft cases, cylinder fins, two spike heads, an original boxed casted inverted unit with one-piece cast venturi and intake, gaskets, needle valve, and timer arm. Second quarter 20th century. 4 1/2" x 5" overall.
Provenance: From the collection of Fred Kaiser, East Sandwich, MA.