Image via Heritage Auctions.
Another 1937 Fisher-Price pull-toy, Dopey solo. Individually moving arms.
Image via fortunecookie.
N.N. Hill Brass Company of East Hampton, CT was another manufacturer of Snow White pull-toys. This example highlights Snow White being pulled by Dopey and Doc. Wood jigsaw cut figures with paper label images on each side. Painted metal wheels with a bell that rings when pulled. Cardboard disc on wheels with bluebird images. Measures 13" long. Copyright 1938.
Images via Hake's.
N.N. Hill Brass Co. produced other Snow White pull-toys and toy phones too, pictured on page 224 of the 1974 book, Disneyana, by Munsey. The Fisher-Price models were mentioned in the April 1938 Playthings trade magazine (p.269).