1897 Winchester gun case.

I have a Winchester 1897 "Trap Gun" made about 1902 which has a second barrel matched to the gun ( 30" Full and a 26" Cyl) The gun also came with a what would have been an expensive leather gun case with brass name plate ( which is poor condition) but which seems period correct for the gun. My question is; did Winchester sell leather gun cases or would this have only been an aftermarket item?