These guys spent their lives inside this box. Some of best preserved figs ever seen.
Box imprint reads, "© 1937 WALT DISNEY ENTERPRISES."
Images via j_tibby03.
A similar boxed set appeared in the 2012 Animation Auction Catalog from Profiles in History. While it has the same cover, it differs in that it also includes the hollow rubber Snow White figure. The catalog states that this one dates from 1939.
See an earlier Archive entry for much more detailed information on these Seiberling latex figures.