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Colt 1911 serial identification

claysclays Member Posts: 1,924 ✭✭✭✭
edited October 2010 in Ask the Experts
Would it be correct to assume that a Colt 1911 lower frame that has a serial number beginning with SM was originally a .22 ace?

Comments

  • rufe-snowrufe-snow Member Posts: 18,650 ✭✭✭
    edited November -1
    Got this off the net. Of course this is for the original production SM's from Colt, not the ones they started knocking out in the late 70's.

    "COLT SERVICE MODEL ACE .22 LR PRODUCTION
    Date Serial Number

    Comments
    1935 SM1 - SM9 Blued finish
    1936 SM10-SM85
    1937 SM35-SM640
    1938 SM490-SM1260
    1939 SM850-SM1560
    1940 SM900-SM1587
    1941 SM1588-SM2714
    1942 SM2715-SM3836 Large gaps in production
    SM3837-SM3839 Scrapped or Not manuf.
    SM3840-SM3843 Colt's Shipping Dept.
    SM3844-SM3845 No record
    1945 SM3846-SM13803 Parko-Lubrite finish."
  • Hawk CarseHawk Carse Member Posts: 4,380 ✭✭✭
    edited November -1
    The "reissue" ACE in the 1970s also had a SM serial number prefix.
    Usually.
    Mine is numbered 70B like a .45 and is not the only one.
    I have seen reliable reports that they also sold some .45s with SM numbers. The frames are mechanically the same and apparently they were not real careful about which caliber they put on what number format frame.
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