Betty Boop World's Fair pin fob

While Betty Boop's last Fleischer cartoon had already premiered, and the last cartoon in her series was only a month away from premiering, visitors to the New York World's Fair in mid July, 1939, would still have been able to buy a pin doohickey in her image, chained to the pleasant stndard 1939 NYWF fob. I'm not sure if the image with a black dress is a variant, or if it's simply a trick of the light.

These pins are not uncommon, so someone did a brisk business (if only the manufacturer).