The one you have is the 1985-7 version of which 5K were made. I was a dealer at the time and had one of the blue and one of the stainless guns. A friend of mine still owns the stainless one.
Selling prices are usually in the $650-850.00 range...they were the first of the Combat Special guns from S&W.... One nice thing about the 624 vs. all the others was the slim barrel...it made the balance much better than on the Magnums...
Bob
