Without a detailed description of ALL markings the question can't be answered.
You can get a letter from Colt.
Impossible to answer because you did provide any information about the revolver or the serial number.
Call Colt
You are asking a question that can't be answered with the information given.
Impossible to answer with the information given.
Sorry- not possible to answer with only that information.
You can get a historical letter from S&W for 50 USD.
It is impossible to tell with just the serial number and no other information. Handgun? Long gun? Revolver, Semi-Auto?
Proofhouse.com has Colt serial number information you can use.
Impossible to tell model number with just the information you have given. What is the caliber? Is it a revolver or semi-auto?
You will need to provide whether it is a revolver or semi-automatic.
Not enough information provided. Need description of the revolver, including any and all markings on barrel and receiver, type of action and model if available.