Binocular periscope General purpose of the French company S. P. I. R. with angular grid.

Binocular periscope 8х24 French company S. R. I. P. (SOCIETE DE RECHERCHE ET DE PERFECTIONNEMENT INDUSTRIELLE à Puteaux (town of PUTEAUX near Paris)) consists of two periscopic telescopes with a magnification of 8 times and the diameter of the lenses (located inside the pipes under the subject prisms) 24 mm. In contrast to the small telescope, movable axial hinge with clamps, covering the telescopes and connecting them, is not in the area of ocular units, and directly below the prism lenses. This arrangement completely eliminates the presence of increased stereoscopic effect when observing through this instrument is inherent in the telescope. To adjust interpupillary distance from and close to the eyepieces, there is a special node in the form of two bi-directional couplers with internal threads, attached to the hulls of the optic tubes and threaded rod handwheel thrust in the middle also mixed, but the outer threads, a member in screw connection with couplings. The focus of each telescope separate, on the ocular couplings marked division in diopters for quick installation of pipe on the eyes. The device has a special handle with two fixed positions for convenience when observing with it. Details of the hinge with clamps, the mechanism of regulation the interpupillary distance (with the exception of the thrust and handwheel), nuts of fastening of the handle and all the parts of the eyepiece are made of brass, the details of the buildings of the telescopes and handle — of aluminum alloy. Outside all items (with the exception of the handwheel and thrust) are painted in khaki (khaki). In the right eyepiece has angular mesh adopted for the French army of the sample in the period of WWI with divisions in tenths of a degree. Optics are clean, adjusted. The length of the instrument -260 mm Weight — 900 g. Quite a rare instrument in excellent condition. The guarantee of authenticity.

Left spotting scope (with eyepiece) : MG – belonging to the military Department; the logo of the manufacturer in the form of an octagon elongated shape with a shortened name of the firm inside ; No9249 — serial number of the device under the contract.

The right spotting scope (with eyepiece): 8х24 — increase and the diameter of the lenses of the device, in mm; DEСIGRADES — marking the dimension of the azimuth scale.