The 1953 Weems & Plath Inc. Proportional Divider Set FSN-6605-682-4548 is a vintage original piece of maritime navigational equipment. Made of metal in Germany, this set includes proportional dividers designed by Weems and Plath. These navigational tools were essential for precise calculations and measurements at sea during the mid-20th century. This set is a rare find for collectors interested in maritime history and navigation instruments.