Junior Colt .22 and .25
Year	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