A recent family member passed and left one of his guns to my wife and I. I've looked around a little on this site trying to identify it, but I'm not sure if I've got it right. It has what looks like about a 6 inch barrel that says "Dan Wesson Arms .357 Magnum CTG." On the right side it says, "Dan Wesson Arms, Monson, Mass USA." The serial number is 2999xx. It has an adjustable rear sight. From what I've read on here it should be a model 15, but I wanted to check first. I'm not sure how old it is or anything and was hoping someone would see the serial number and know about when it was made. It also came with a Safariland carrying case and a safariland holster. I'm not looking to sell it by anymeans, but I was curious what the value of something like this is? Thanks.