This vintage booklet from 1942 was used by US military pilots in their mathematics training during World War II. It covers a range of mathematical topics including algebra, geometry, and trigonometry, all with a focus on practical applications in flight. The booklet is an original piece from that era and has not been modified in any way.

If you're a collector of militaria or World War II memorabilia, this booklet would make a great addition to your collection. Its historical significance cannot be overstated and it provides a unique glimpse into the training of US military pilots during one of the most important conflicts in modern history. Don't miss out on the chance to own a piece of this important piece of history.