Dating s w model 10
Barrel lengths were 4-, 5-, 6-, and 6.5-inches with a rounded butt.
Serial numbers for the Military & Police ranged from number 1 in the series to 20,975. This one left the factory in 1929 and was sent with ten others to a firm in Buenos Aires.
In 1899, the United States Army and Navy placed orders with Smith & Wesson for two to three thousand Model 1899 Hand Ejector revolvers chambered for the M1892 .38 Long Colt U. That same year, in response to reports from military sources serving in the Philippines on the relative ineffectiveness of the new cartridge, Smith & Wesson began offering the Military & Police in a new chambering, .38 S&W Special (a.k.a..38 Special), a slightly elongated version of the .38 Long Colt cartridge with greater bullet weight (158 grains) and powder charge increased from 18 to 21 grains of gunpowder.