Vintage HARPER‎ COMPUTER Calculator Slide Rule Corrosion Resistance Morton Grove

This vintage manual slide rule is perfect for metal cutting tasks. It features a Harper brand and is made of high-quality materials to ensure corrosion resistance. The calculator is specifically designed for accurate measurements and is suitable for both personal and industrial use. With its compact size, it is easy to carry around and can be used on-the-go. This item is a must-have for metalworking enthusiasts and collectors alike.