This flip book dates to 1939, made for the New York Wold’s Fair as an advertising giveaway for Bromo-Selzer, a headache cure. In one direction, a very unhappy looking man transforms into a widely smiling one, having a lightbulb moment midway through that leads to a good swig of the the liquid. In the other direction, just the pure pleasure of a hula dancer in grass skirt between two palm trees dancing away. Pretty classic, and pretty fun!

2 1/2” x 1 7/8”, 26 pages, staple bound and in very good condition, I think perhaps missing a World’s Fair title page/cover at one end.