The British loaded Remington is quite uncommon here, but has a limited market. Remington had a plant in Brimsdown where they imported their manufactured hulls & then loaded them. Not sure if the shells were marked Made in USA on the case wall before importing or at Brimsdown. Also a good clue if loaded at Brimsdown is the MADE IN USA on the headstamp & also the over shot card style / information. Also not sure about the time of operation at Brimsdown, you might ask Martin G. or Jim B. Your right about the others value, but I’d say more in the .50¢ range here in the US.
The shells with the sticker over the mouth crimp would be from the early to mid 1950’s - 1960’s, as the mid to late-60’s is about when plastic began to appear.
The roll crimps probably post WW II or perhaps pre-WW Ii, and the 2" is most likely pre-WW II marketed for British made guns, although a few US makers did offer a 2" chamber if I’m not mistaken.
hope this is of help