Pistol and Revolver Cartirdges by White & Munhall Vol1 & 2 (1 book) 170pp. This now log out of print is one of the authoritive references recognised by the UK Home Office in their guidance. This standard reference is now quite hard to find, a few years back i seem to recall I had to import our copy from the USA! Condition is very good, some light distrssing to the dust jacket
Photo shows actual book