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.
1918
Go to Proofhouse.com
100-1000 or more depending on specifics
would need a serial number to answer the question.....................
the serial number is too HIGH for 1911 military pistols........
age of the military 1911 is based on serial number................
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.
made by Ithaca in 1944
your pistol was made by colt in 1918. you are probably reading 'remibgton rand' off the slide. It is not unusual to have the wrong slide on a colt pistol. this happends when a number of 45's are broken down for cleaning and parts are mixed when put together.
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
Proofhouse.com has Colt sn data.
probably made by colt in 1943. If your slide reads Ithaca, then it is on a Colt frame. That is not unusual....................