"The .32 S&W Long, also known as 7.65x23mm, is a straight-walled, centerfire, rimmed handgun cartridge, based on the earlier .32 S&W cartridge. It was introduced in 1896 for Smith & Wesson's first-model Hand Ejector revolver. Colt called it the .32 Colt New Police in revolvers it made chambered for the cartridge."
https://en.wikipedia.org/wiki/.32_S%26W_Long