This antique parallel ruler is a stunning collector's item made from boxwood  wood and brass. It has a unique and beautiful design, making it a great addition to any maritime antique collection. This item originated in the United States during WWI and was used by the Marina Militare. The parallel ruler comes in a single unit quantity and is perfect for display or use. It is a rare find that is sure to impress any antique enthusiast. The Captains Fields Parallel Ruler has been well-preserved over the years, showing only minor signs of wear and tear, adding to its authentic character.  I am offering other vintage items and always willing to combine shipping when possible. Please request invoice from seller to combine shipping . Thank you for Viewing and Happy Bidding.