The Boreal Arrow
Code BA11120731: M. D. S. Engraved Compass, c. 1917
This a nice WWI era compass, engraved M. D. S. LONDON. The Dennison case is Nickel plated and is still in excellent condition, no damage. Inside stamped 207629 W. When the button is pushed the front lid springs open to a right angle. Flat beveled glass crystal and dry Dennison dial card are in excellent condition. Next to the glass stamped the last four digits of the inner serial number (7629). In full working order and finding North precisely, with strong hinge including the transit lock. Size 4.7cm diameter.
The case maker was Aaron Lufkin Dennison of Birmingham UK, he manufactured watch cases from late 1874 at 24 Villa Road, Handsworth UK. As part of the war effort he diversified into compass cases. He was originally the Managing Director of the American Waltham Watch Company in the USA, where he made the very first watch with interchangeable parts and produced watches of Railway quality. He was known as the Founding Father of the American Watch Making Industry.