My father has a Colt 1917. The serial number is 234717. Does anyone know the DOB of this revolver. Also the blue is gone off the weapon and it is starting to develop which looks like brown patina though it is not too bad. Its double action is horrible and the single action is heavy also. I have heard that Colt does not repair old colts like this anymore. If not where could I send it to be repaired. Also who can blue the weapon properly. I do not think it would hurt the value too much since it has no Blue! Any help would be appreciated. It shoots accurately by the way and is in good shape.