Ventometer large bore anemometer (Patent) Books and surmounted by a globe

and surmounted by a globe with intricate details

Widely exported to communist-aligned forces during the Cold War

Brass/bronze UDF title/badge bearing the legend “NATAL & O

” Canadian-made examples are scarcer than their British counterparts

embroidered rank insignia from the South West African Territorial Force (SWATF) used during the South African Border War

Ventometer large bore anemometer (Patent) Books and surmounted by a globeA 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.