value depends on overall condition.......do you have pictures ???
if your 45 is a single action then it was made in 1916
The age and value of a colt .45 peacemaker serial 180356 are about 1900
Impossible to value with just the serial number
45 ???? revolver or pistol ????? what is the model ????
Impossible to value with no description or serial number. Could be 10-1000000 USD
made about 1928...................
$500
about 1977
value depends on overall condition....................
check the butt of your Colt. The serial # does not look right ????
check with: coltautos.com
made by Colt for the US Navy in 1942