That is a beautiful 3rd Model Dragoon Electricfactory. Much more beautiful than mine!
Mine started out as a really beat up gun I got in a trade. The only logical thing I could do was strip it. The blueing was in a sad state, so I decided to give it an antique job. Plus, the previous owner saw fit to put some brass eagles on the grips, and their was no way to fix that. So I took them off and replaced the tacks. It's better but not ideal. It's still one of my favorite shooters though.
It's had many, many rounds through it, and it never drops the loading lever. It just went to Outlawkid to get his "Texas Tune" put on it. It sure works good now!
The serial on mine is only 228 before yours. And the date code on mine is AC, so 1977. I would imagine yours to be about the same vintage being that close in serial number.
I'd once again like to commend you on your photography skills too. Great pictures!