1958 Based on the production run of serial numbers, listed, start at the beginning of the year listed, I would say 1957.
That Colt super .38 was made in 1948.
In 1970 ( CS002800 to CS005280 )
Made in 1966.
Try the sn tables at Proofhouse.com
Call Colt with the sn and they will tell you.
With the serial number that you have provided,your Colt Model 1911 was made by Colt in the year 1918.
A Colt .38 Super with the serial number 200995 was manufactured in 1947. Colt's production records indicate that this particular serial number falls within the range of guns produced during that time period.
YOu will have to call Colt and give them the sn to find out.
ABOUT 1929
Call Colt and they will tell you for free.
Your colt was made in 1912.
That Colt ds was made in 1975.