The Vintage Slide Rule PIC Thornton F157 is a rare and valuable engineering tool dating back to the early 20th century. Made in the United Kingdom, this slide rule would have been used for mathematical calculations in various engineering and surveying applications. Crafted from mixed materials, it showcases the craftsmanship and expertise of the time period, making it a desirable collectable for those interested in scientific and industrial history. The inclusion of a protective case adds to its appeal and ensures the longevity of this unique piece.

Very nice clean item. Minor mark to mahogany as photos. Good case with minimal wear

Thanks for looking