Thacher's calculating instrument or cylindrical slide-rule
18 min read
Rate this book:
About This Book
This book describes the use and applications of a high level cylindrical slide rule. Thacher's slide rule is a collector's item for fans of old mathematical instruments.
Buy This Book
As an Amazon Associate and Bookshop.org affiliate, BookOrb earns from qualifying purchases.
Write a Review
Sign in to write a review.