The Story of Zingo, The Commercial Traveler

Zingo the monkey gives up organ-grinding and becomes a commercial traveller. Unfortunately, it's hard to sell Colgate's Ribbon Dental Cream - even the Laffing Hyenas already have it. Fortunately, he meets a Dentosaurus with a toothache. This antique promotional booklet was written and illustrated by the famous creator of Doctor Dolittle.