1940's Illinois Tool Works Trigonometry Tables Excellent Condition 80 years

The product is from the 1940's of Illinois Tool Works (ITW) trigonometry tables, which are likely tools or guides used for precision measurements and calculations. Made in the United States, this is over 80 years old and in excellent condition, making it a rare and valuable collectible item for enthusiasts of vintage tools and hardware. With the Illinois Tool Works (ITW) brand known for its quality and reliability in the industry, these trigonometry tables would be a desirable addition to any collection or workshop. Natural functions include sines, cosigns, tangents, cotangents. secants, and cosecants .This item comes as is, as pictured , so please look carefully at all pictures. and ask all questions prior to bidding. Item # 01425.