Getting back to Winchester Model 12 featherweights, I own one, it was my first shotgun given to me by my father. I hope to pass it down. I remember pheasant hunting with my dad, after a long
afternoon, we stopped to cross a fence. I held his 1897 and thought, "wow, this is heavy compared to my featherweight."
A couple of years ago, I picked up an extra barrel with a polychoke on it. I still haven't gotten around to having it shortened and screw in chokes added.
The Model 12 featherweight and Model 25 were variations of the Winchester Model 12 that were cheaper to manufacture. Personally, I think of the Model 25 as being the solid frame version of the Model 12 featherweight, just due to the similarities of the left sides of the receiver, in particular
the cutout in the receiver for the operating bar.
Are they pricey asks Fallschirmjaeger, not particularly in today's market. Here is a link to one that went fairly cheaply in my opinion on gunbroker.
Model 12 featherweight