This seller is optimistic or enthusiastic about his gun. Here is a great example. Seller claims a "one of a kind, special order gun complete with a factory letter". Sounds good so far. Then you read the letter(s). There are two of them.
Notice Serial number applied July 23, 1894. Received in warehouse July 24, 1894. Shipped from warehouse September 03.. 1899. That is a heck of a special order. Sat in the warehouse for five years. One of a kind. And buyers have bid this gun up to $1695.00 which is not out of line for this gun. I think this gun sat in the warehouse so long they would be happy to put whatever stock any buyer willing to take it wanted. That or it was built with such a high stock that nobody would buy it for five years. But to imply that Winchester built this gun like a fine London made to order gun is a bit rich to me. to the sellers credit he does give you a lot of pictures, 107 in total. So he is not trying to hide anything, just trying to make it into a super rare item.
"Popular special order options were limited to high-grade checkered walnut stocks, shorter than standard barrel lengths, and the type of barrel steel. The standard barrel was a 30” or 32” rolled (fluid) steel, with an optional three-blade “Good” Damascus steel, or four-blade “Fine” Damascus steel available at extra cost." This according to the Winchester Arms Collectors Association. So you could get what you wanted if you asked and paid for it I think.
https://www.gunbroker.com/item/889563189