Duncan-produced "How to Master Championship Tricks with Genuine Gold Seal Yo-Yo Duncan Tops" booklet containing 40 tricks for ten cents.
This booklet did not contain any photographs. Instead, it included caricature drawings of Mr. Yo-Yo performing the various tricks that are described in word form. What is notable is the original names of the tricks, some of which people have tried to rename over the years.
The Preface section contains interesting information about certain World War II veterans who were yo-yo champions prior to the War. Many names are recognized as well-known, professional players such as Jack Russell, Walter "Tex" Schultz, Gene Mauk, and Barney Akers.
Compare the Preface section in this booklet with the Preface section in the 1950 Canadian Cheerio trick booklet, also found in this museum. The paragraph in the Cheerio booklet about Canadian yo-yoing war veterans and their military service is fictitious.
