DescriptionBand chain made by Keuffel & Esser Co., New York, no date, 1956-1967. Metal (bronzed / black) case with nearly enclosed top; glass window to compass dial; 3" diameter compass body (4-1/8" wide with prism eyepiece closed) x 3-3/8" high with sight vane open (1" high when closed.) With: original sewn dark tan leather case with strap top (described in catalogue as sling case: sling as depicted in catalog is not present); blue velvet lining. Missing: printed instructions; sling strap as stated. Model name or number does not appear on the object. K&E had their main office and factories in Hoboken when this item was made.