Colt Pocket Positive in .32 Colt Police ctg chambering. Nickel with mother of pearl grips. Made in 1921 (91 yrs old!) according to the serial number records. Perfect timing and lockup of the cylinder. Check out the size, top revolver is a Colt New Service in .45 Colt (1916 w/British and Canadian proofs), bottom revolver is a Colt Detective Special in .38 special (1966). The little guy in the middle is the Pocket Positive. The PPs were made by Colt from 1906 thru 1940 when they were discontinued.