Automatic Pistol, Caliber .45, Model of 1911
Date First # Last # Manufacturer Sent To Quantity
1912 1 500 Colt   500
  501 1000 Colt USN 500
  1001 1500 Colt   500
  1501 2000 Colt USN 500
  2001 2500 Colt   500
  2501 3500 Colt USN 1,000
  3501 3800 Colt USMC 300
  3801 4500 Colt   700
  4501 5500 Colt USN 1,000
  5501 6500 Colt   1,000
  6501 7500 Colt USN 1,000
  7501 8500 Colt   1,000
  8501 9500 Colt USN 1,000
  9501 10500 Colt   1,000
  10501 11500 Colt USN 1,000
  11501 12500 Colt   1,000
  12501 13500 Colt USN 1,000
  13501 17250 Colt   3,750
           
1913 17251 36400 Colt   19,150
  36401 37650 Colt USMC 1,250
  37651 38000 Colt   350
  38001 43800 Colt USN 5,800
  43801 43900 Colt USN - USS New York 100
  43901 44000 Colt USN - USS Texas 100
  44001 60400 Colt   16,400
           
1914 60401 72570 Colt   12,170
           
1914-1915 72571 83855 Springfield Armory 1915: 81751 - 83855 11,285
           
1914 83856 83900 Colt   45
  83901 84400 Colt USMC 500
  84401 96000 Colt   11,600
  96001 97537 Colt USN - Various Ships 1,537
  97538 102596 Colt   5,059
           
1915 102597 107596 Springfield Armory   5,000
  107597 109500 Colt   1,904
  109501 110000 Colt USN - Naval Militia 500
  110001 113496 Colt   3,496
           
1915-1916 113497 120566 Springfield Armory 1916: 120201 - 120566 7,070
           
1915 120567 125566 Colt   5,000
           
1916-1917 125567 133186 Springfield Armory 1917: 127131 - 127978 7,620
           
1916-1917 128617 133186 Colt SA suspended serial numbers 4,570
           
1916 133187 137400 Colt   4,214
           
1917 137401 151186 Colt   13,786
           
1916 151187 151986 Colt USMC 800
           
1917 151987 185800 Colt   33,814
  185801 186200 Colt USMC - transferred from Army 400
           
1917-1918 186201 209586 Colt 1918: 204987 - 209586 23,386
           
1917 209587 210386 Colt USMC 800
  210387 215386 Colt Reserved for receivers 5,000
  215387 216186 Colt USMC 800
  216187 216586 Colt Army - transferred from USMC 400
  216587 216986 Colt USMC 400
           
1918 216987 217386 Colt USMC 400
           
1917-1918 217387 223952 Colt 1918: 217801 - 223952 6,566
           
1918 223953 223990 Colt USN 38
  223991 232000 Colt   8,010
  232001 233600 Colt USN 1,600
  233601 573000 Colt ~ Not in serial order 319,746
  1 13381 Remington Arms UMC   13,381
           
1919 13382 21676 Remington Arms UMC   8,295
  551000 629500 Colt Continued from 1918 76,154
  629501 717386 Colt Suspended  
           
1924 700001 710000 Colt   10,000
           
1937 710001 711605 Colt USN 836, USA 769 1,605
           
1937 711606 712349 Colt USN 744
           
1938 712350 713645 Colt   1,296
           
1939 713646 717281 Colt USN 3,636
           
1940 717282 721977 Colt   4,696
           
1941 721978 756733 Colt   34,756
           
1942 756734 793657 Colt   36,924
           
1942 793658 797639 Colt USN 3,982
           
1942 797640 800000 Colt   2,361
           
1941 S800001 S800500 Singer Mfg Co   500
  H800501 H801000 Assigned to H&R    
           
1942 801001 856100 Colt   55,100
           
1942-1943 856101 958100 Colt ~ 1943: 862000 - 958100 102,000
  856101 856404   Replacement Numbers 304
           
1943 *856405 916404 Ithaca   60,000
           
1942-1943 *916405 1041404 Rem Rand ~ 1943: 921700 - 1041404 125,000
           
1943 *1041405 1096404 Union Switch & Signal   55,000
           
1943 1088726 1092896 Colt    
           
1943-1944 1096405 1208673 Colt ~ 1944: 1155000 - 1208673 112,269
           
1943-1944 1208674 1279673 Ithaca ~ 1944: 1235000 - 1279673 71,000
  1279674 1279698   Replacement Numbers 25
           
1943-1944 1279699 1441430 Rem Rand ~ 1944: 1363700 - 1441430 161,732
           
1944 1441431 1471430 Ithaca   30,000
           
1944 1471431 1609528 Remington Rand   138,098
           
1944-1945 1609529 1743846 Colt ~ 1945: 1720000 -1743846 134,318
           
1944 1743847 1816641 Remington Rand   72,795
           
1944-1945 1816642 1890503 Ithaca ~ 1945: 1816642 - 1845997 73,862
           
1944-1945 1890504 2075103 Rem Rand ~ 1945: 2031600 - 2075103 184,600
           
1944-1945 2075104 2134403 Ithaca ~ 1945: 2110465 - 2134403 59,300
           
1945 2134404 2244803 Remington Rand   110,400
           
1945 2244804 2380013 Colt Approx. 119,450
    2368781 Last pistol manufactured by Colt    
           
1945 2380014 2619013 Remington Rand   85,126
    2465139 Last pistol manufactured by Remington Rand    
           
1945 2619014 2693613 Ithaca   41,305
    2660318 Last pistol manufactured by Ithaca    
           

*Colt duplicated the following serial numbers:

  • 60,000 pistols in the Ithaca serial range: 856405 - 916404
  • 41,696 pistols in the Remington Rand serial range: 916405 - 958100
  • 4,171 pistols in the US&S serial range: 1088726 - 1092896
~ indicates the approximate serial number at the beginning of the year, as those pistols were not manufactured or shipped in numerical order