This vintage concise circular slide rule is a rare find for collectors of engineering and surveying memorabilia. Made in Japan with high-quality celluloid material, this item is a testament to the precision workmanship and innovation of Japanese engineering. The circular design and sliding scale allow for quick and accurate calculations, making it an essential tool for professionals in the field.

Dating back to 1951 and still in excellent condition, this complete slide rule is a unique and valuable addition to any collection. Its intricate details and compact size make it a great conversation piece, whether used as a display item or as a functional tool. Purchase this vintage item today and own a piece of engineering history.