Original German Pre-WWII Brass Optical Tripod Mounting Coupler and Calibration Unit Untouched Antique Guns feed system was operated through

feed system was operated through the horizontally pivoting pin / levers system by recoiling barrel group

in part facilitated by using components from common sources – frames from Midland Steel

Ordnance and "P" on the bottom of the grip

original “fluted” RPzB 54 barrel tube to increase strength

The rarity of this product needs no elaboration

Original German Pre-WWII Brass Optical Tripod Mounting Coupler and Calibration Unit Untouched Antique Guns feed system was operated throughOriginal Item: Only One Available. So often these are missing, the interfacing unit allowing a "Rabbit Ears" pair of Binoculars Field Glasses to be mounted onto the standard German Optic's tripod. The early production example is constructed almost entirely of BRASS, which has been polished, and dates from the late pre war 1930's. Brass became a very scarce commodity once WWII started, so these couplers were then constructed from steel. Original