Ventometer large bore anemometer (Patent) Books The sight attaches to the

The sight attaches to the side of the receiver via a spring-loaded arm and clamp system

and surmounted by a globe with intricate details

suggesting quality manufacture for formal presentation

” Canadian-made examples are scarcer than their British counterparts

Ventometer large bore anemometer (Patent) Books The sight attaches to theA smalll bore ventometer used to measure wind resistance and velocity. Features a graduated scale with clear markings, precision screw adjustment, and an engraved "Patent" marking on the body, indicating an original and innovative design. Made from high quality brass and steel components for durability and precision.