Ventometer large bore anemometer (with sight) Books " indicating its patented design

" indicating its patented design for precision airflow measurement

1 complete set of patt 61/64 webbing

This brass bore inspector tool was used to inspect the internal condition of the barrel in

AG Parker model "TZ" Appacher peep sight for 303 long lee and SMLE

"7TH QUEEN’S OWN HUSSARS

Ventometer large bore anemometer (with sight) Books " indicating its patented designThis Ventometer, labeled as a large bore anemometer, is an intricate and precise tool designed for measuring windage or airflow, particularly in large bore applications. Manufactured by W. J. Jeffery & Co., Gun & Rifle Makers, it features a detailed scale and adjustments for precise readings. The tool's build quality and design indicate use in firearms related settings, possibly for ballistic or environmental wind adjustments. It is in good condition