Junior Colt .25ACP and Colt Auto Cal .25 Ship Dates
Year Approximate Serial Number
1958 1CC
1959 3500CC
1960 7100CC
1961 9500CC
1962 11901CC-14000CC
1962 25000CC
1963 26431CC
1964 30631CC
1965 34939CC
1966 40136CC
1967 44739CC-45531CC
1967 75132CC
1968 75882CC-85082CC
1971 0D10001
1972 0D38301
1973 0D82601-OD120471

 

Junior Colt .22 Short Serial Number Ship Dates
Year Approximate Serial Number
1958 1
1959 250CC
1960 14001CC
1961 16501CC
1962 18350CC
1963 20450CC
1964 21750CC
1965 24300CC-25000CC
1965 50001CC
1966 51100CC
1967 54950CC
1968 58250CC-62338CC