Exceptional antique reverse essex crystals of well-dressed equestrians jumping their beautiful horses. The reverse crystals are incredibly detailed. The riders have on a hats, a jackets, and crops. Yes, incredible detail. The Mother of Pearl background is not perfect . It shows a little discolor but nothing near fatal(see photos.) In certain lights, it is barely visible. The antique reverse crystals are attached to much later cufflink backs that are marked 585 for 14K and a plaque that says Tiffany&Co and 18K. We believe the 585 mark. We are ignoring the plaque. The cufflinks weigh 10.6 grams. These are nice. They will wear well for a long time to come.