Vintage Watson Auxiliary Transmissions Slide Rule Instruction Rule Book /Slide For Sale

This vintage Watson Auxiliary Transmissions Slide Rule Instruction Rule Book is a must-have for collectors of slide rules. Made in the United States, this slide rule is a great addition to any engineering or science & medicine collection. Its unique design and functionality make it a valuable item for those interested in the history of slide rules.With its collectible value, this slide rule is a great find for anyone interested in engineering or science & medicine, whether you plan to use it as a tool or simply display it in your collection. Don\'t miss out on the opportunity to own this piece of history.