1.25” superbly colored button showing them on a yellow roadway passing a “Good-Teeth” sign post. Reverse back paper reads “Distributed By The Bureau Of Public Relations American Dental Association” with a Chicago address. The button’s front has a slight air mark on the rim from 11 to 4 o’clock. Button remains essentially Mint as made. A scarce give-away circa 1940 with auction sales exceeding $400.