Wrong on the Win. Model 201 being another iteration of the Win. Mod. 23, Drew. As LeFusil stated it is a blued frame Parker Reproduction with slightly different frame contours. Since Winchester made the Parker Repro and had parts and tooling, it was an attempt to use all of that to recover some capital after the PR was discontinued and the collaboration with Tom and Jack Skeuse of White Flyer fame was dissolved. Semi-beavertail and pistol grip stocks. They were all made with 26" barrels and vent ribs, 12 and 20 gauge, Winchokes. Pretty sure there was only one run of them made, and very few in that run. There was no 201 Waterfowl to my knowledge.
I would think, with the steel they were made from, steel shot usage would be ok.
JR