5″ Dutton Chain Short Shank Curb Bit

5″ Dutton short shank curb that offers a discontinued shank style. 4″ flat chain mouth with copper rings/players. Pinchless cheeks and short shank that measures just 6.5″. Has a bit of slide where the mouth meets the shank. Also has a slot at that point to change the leverage options of this bit.  This curb is chin hardly used condition, hardly showing any rust. Is marked #S89.