Beautiful 1882 Colt .45 1st gen SAA.

Hello all. New member here. This is my 1882 1st gen SAA .45.. I was lucky enough to come across this piece a couple years ago. I purchased it from an antique store in Florida. It was among a large collection they had acquired from the daughter of the previous owner that had passed away. It was between this one and a Texas Ranger but I couldn’t seem to take my eye off this one. Think it was the engraving work lol.. I am looking for any and all thoughts on it from a community of knowledgeable people as to place a ball park value on it and any information that may be out there as far as who may have done the engraving. Serial numbers (84647) match throughout and as far as I can tell all is original except for the rubber grips were replaced with ivory and the engraving was done post factory at or near Simmons Hardware in St. Louis Missouri back in the late 1800s. Rifling in barrel shows very little ware and hammer action is all working and functional. I’ve thus far only been able to gauge its value based on others somewhat like it I’ve come across on auction sites and I gotta say I’ve seen quite a few going for a lot that seem of lesser quality. Some with similar engraving style but again not as good as this one. Thanks in advance for any and all comments. Very interested in learning and sharing more about this piece.