Reply to "how to determine mfg date of american flyer steam engine"

Continuing on, the 1946 had a thin shank coupler with no weight. The 1947 had SIT and American Flyer Lines on the tender along with a thick shank coupler. The 1948 had the smoke and choo choo unit in the engine with the reverse unit in the tender. There is a 4 wire connection from the tender to the engine. The coupler now had a brass weight.