In your first picture, I can not make out the head stamp - can you tell us what that is - or perhaps post a close up picture to show it? It still astounds me that Winchester might have allowed a trade-marked product to be sold under another brand name - simply not what "modern" lawyers, marketers, etc. would allow - no doubt Winchester could make those for someone else to sell under their brand or logo - but I am still hung up that they would have used their own trade-mark on it. Mixing who made it, with who sold it, is becoming more common, I think - I have factory new sealed bags of brass labeled and sold by RUAG AmmoTec USA - near as I can determine, the parent company is RUAG in Switzerland - the brass is head stamped "MFS" - which is a Hungarian brass maker. I am not real certain, but I think "MFS" might be a successor brand to older "RWS" - which had a terrific reputation.
As far as I can determine, in last part of 20th century, there were a number of companies who sold stuff, but never made anything - so like Tanross Supply Co. of Florida, USA (Tasco), RUKO (in Canada), Herter's Inc. - they all sold lots of stuff with their own brand or logo on it - almost all of it made by someone else - hence some have opinions about "Tasco" scopes - yet Tasco never made a single scope - although they sold lots of them - various models from cheapest crap to probably the best in the world - at that time. Is no reason, that I know of, to know that a Herter's product bought in 2002, was made by the same maker as in 1992, or in 1982 - although all will have the same "brand name" on it.