The first American Flyer Set produced also came with track, an uncoupler, and a transformer. The “T” in the set number indicated that a transformer was included. The set was cataloged in 1948 and 1949 and several un-cataloged versions also exist. 1948 versions should have the brass coupler weights and the 1949 versions should have black coupler weights. Production date confirmation can also be determined by removing the mechanism from the locomotive shell and looking for the production date stamp. It is also thought that the cast in handrails were produced after the wire handrails as a cost reduction.
The Gilbert American Flyer 48T set was a higher end starter set with a die cast metal pacific (4-6-2 wheel arrangement) locomotive.However, the locomotive did not have the Gilbert smoke and choo-choo features offered in other locomotives. The 350 Royal Blue locomotive was the continuation of the same locomotive offered prior to WW II in the 3/16″ths O gauge Gilbert American Flyer train line. The offerings prior to WW II included both blue and hammer tone gray paint colors and varying wheel arrangements.
Postwar developments of the Gilbert American Flyer Royal Blue locomotive include wire handrails followed by cast in handrails. This locomotive was painted red and used in the American Flyer Circus set. The locomotive mold was converted for plastic and used in the Silver Bullet sets in both chrome plated and satin silver paint variations.
The Royal Blue prototype was a streamlined Baltimore and Ohio passenger train that ran between New York and Washington, DC.
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The T48 also came with the very rare grey unpainted 631 gondola, the only time it was found.