Colt Model 1905 Estimated Ship Dates
Year Serial Number Range
1905 1 - 8
1906 9 - 1574
1907 1575 - 2599
1908 2600 - 3500
1909 3501 - 4400
1910 4401 - 5200
1911 5201 - 6100
1912 6101 - 6200
1913 6201 - 6210 (last)
1917 5979, 6035, 6209

 

Colt Model 1907 U.S. Military Trials Ship Dates
March 17th, 1908 1 - 200
April 2nd, 1908 201 - 205
September 21st, 1908 206
September 16th, 1908 207