You did not specifically mention that the revolver you are seeking had to be a S&W. In 1953 Colt also made several different versions of .38 Special revolvers, and one in .357. Those would be the Detective Special, the Cobra (the alloy frame version of the Detective Special), the Police Positive Special, and the Official Police. The .357 was called simply the Colt .357 and was a variation of the Colt Official Police frame with adjustable sights. There was also a similar target model variation of the Official Police frame in .38 Special called the Officer's Model Match. Colt did not use model numbers either. Additionally, both Colt and S&W revolvers were available in different finishes and barrel lengths.