I did a little research and found that in 1969, after reaching serial number 241811-S, Colt began a new series of serial numbers for their series of Woodsman pistols beginning with serial number 001001-S and reaching serial number 020101-S by the beginning of 1970. So your Woodsman was produced in 1969. Beginning in 1955 Colt changed from the magazine button release, second series, to the magazine catch on the butt, third series. So, your Woodsman should have the later, third series, type of magazine release.