Have you done a web query? If you do, you'll get a bunch of hits. Your question is to vague and offers no information other than the model. Price ranges can be from 300-800 depending on whether you are selling, traiding, or buying and the conditon.
what model ?????????
which model ?????? condition ??????
45 ???? revolver or pistol ????? what is the model ????
No such model number in the Colt line. S&W, however, did make a Model 25-5. Value 50-600 USD
value depends on overall condition, model ..................
40-100 USD
value is determined by overall gun condition....
value depends on overall condition.................
value depends on overal condition of weapon......................
if it's the colt single action model, then made about 1884.................................. value depends on overall condition.......................
100-1000 usd
50-700 usd