A pair of vintage Kershaw The Monarch 5x40 Binoculars, with 5x magnification, 40mm objective lens, large 20mm eye lens, and extra wide angle view.

Serial number: 37203

Magnification: 5 x (see Note below)

Objective lens diameter: 40 mm

Large eye lens: 20 mm

Extra Wide Angle Field of View (≈11–12°, see note below)

Central focusing and diopter adjustment at right eye.

Metal body construction with leather armouring.

Dimensions (when binoculars fully open): 175mm (W) x 165mm (H) x 55mm (D)

Weight: approx. 700g (1.5 lb.)

Original leather neck strap included.

Condition: The binoculars are in good working condition with correct collimation and nice images for their age. No damage to optics and to main binoculars body. There are minor dents on the edges of the objective metal rings, which are light and barely noticeable. General wear and tear appropriate with age and usage. These binoculars are well-suited for general observation, providing clear images.

Engraved on top left prism plate:

40 5x40
Extra Wide Angle
KERSHAW
No.37203

Engraved on top right prism plate:
THE MONARCH
MADE IN ENGLAND

Historical note: This rare early post-war Kershaw “40 5×40 Extra Wide Angle” binocular, serial No. 37203, was made in England circa 1948–1952. It features a unique wide-angle optical design introduced during Kershaw’s transition from military to civilian production following WWII.

Model marking “40 5x40 Extra Wide Angle” – Kershaw briefly used this unusual “40 5x40” marking before standardising to “5x40” on later The Monarch and The Renown series. It indicates 5× magnification with 40 mm objective lenses and a very wide field of view (≈ 11–12°). The marking is partially worn, please see photos.

Please see photos for further details.