Proofhouse.com has Colt sn data.
The Colt M1911 was designed 1911.
would need a serial number to answer the question.....................
Dozens of companies made 1911s, and there is no commonality to Serial numbers. If you 1011 is a Colt, you can contact colt customer service.
You can find a list of Colt M1911 and M1911A1 production serial numbers at http://www.coolgunsite.com/pistols/colt%20production.htm. Going by the numbers in your question (7071), it looks like you have a M1911 that was made for the Navy in 1912, the first year of production.
probably made by colt in 1943. If your slide reads Ithaca, then it is on a Colt frame. That is not unusual....................
1911, and remodled in 1927
Impossible to answer without a detailed description and the serial number. It is a 1911-A1, 45 Cal., Olive Drab in Color, Made in 1938 (?), Serial # 1950 Excellent Condition......As New
made by Ithaca in 1944
Your 1911 pistol was made by Remington Rand in 1944. Your slide is probably marked Colt. however, the serial number denotes the gun manufacturer. Often when cleaning several 1911 pistols the parts are mixed when put back together as with putting a Colt slide on a Remington Rand frame.
colt fronter six shooter serial # 1186654
The Colt 1911 government model with that serial number was made in 1919,
A Colt 1903 hammerless .32 with that serial number was made in 1919.