Cardboard Pencil Case with color graphics

Cardboard Pencil Case with color graphics U.S. Pencil Co., New York, N.Y. USA E-Z Multiplier and Pencil Outfit, circa 1936. SOHS 990.37.1

This pencil case could be used to learn multiplication tables by turning the layered tubes to reveal the equation and an answer.

Cardboard Pencil Case with color graphics