The Detective has a steel frame. Gold plating is rather soft and tends to wear off easily. I suspect most gold plated guns are not shot much if ever. Yours shows considerable use. What to do with it is up to you. I'm sure it can be replated or the plating removed and the gun blued. I am a bit old school and not a fan of refinishing. Were it me I would probably just take it out and shoot it. If you want to find out more about it you might consider a letter to find out if it left the factory plated. Perhaps a bit of research to find out if it was ever owned by someone famous.