Spencer Lens Company U.S. NAVY BU.SHIPS MARK 30 MOD 0 7X50
Manufacturer/Model: Spencer Lens Company U.S. NAVY BU.SHIPS MARK 30 MOD 0 7X50
Field of View: 7 deg 40 min = 134 m/1,000 m; APFOV 53.9 deg
Weight: 1241 gr
Exit Pupil: 7.14 mm
Serial #/Year of Manufacture: 285080 = 1944-1945
Notes: Historically, the Spencer Lens Company which was purchased by the American Optical Company in 1935 was an important American maker of microscopes, lenses and optical glass, and at the outbreak of World War II had the capacity to manufacture binoculars of innovative design such as the Navy Mark 30 7X50.