Pressure Test Gun/Device from about 1900

Hi, All…

Does anyone have any pictures or drawings of a chamber pressure test gun/device from about 1900. Preferably one that was used for Caliber .30 (Krag) cartridges. Thanks !!

Randy

The book by William Brophy “The Springfield 1903 Rifles” on page 221ff has several pictures and drawings, although of limited size.

JPeelen…

Thanks for the info…

With the help of a good friend, I did find several images on the internet which will serve my purposes…

Randy