Wow, talk about an open ended question. It's been around in the M1911 platform since 1929. and there have been a lot of different variations made. Value depends on condition, finish, grips, box, papers, engraving (if any), how bad do you want to sell/buy, etc.. With no more information than you have given, all I can tell you is you might be in the range of 300-2000 USD.
about 1948
about 1968
about 1949
about 1946
50-1000 usd
10-1000 usd
No way to value with just the sn. Could be 10-1000 or more in USD
No way to value with just the sn. Could be 10-1000 USD
Made in 1949. Value depends on condition. Range from 200-4000 USD
about 1948
100-1000 usd
About 1948 or 1949.