Dellet wrote on Aug 2
nd, 2018 at 10:49am:
Are there others that you are aware of that were considered Stevens cartridges?
The most popular cartridge that Stevens
claimed to have originated (after the .22LR) was the .25-20 SS, or rather .25-20 Stevens, as it was called in their 1900 catalog. That catalog includes the statements "we first brought this cartridge out" & "was originated by us," leaving no doubt as to where full credit supposedly belonged.
However, the truth is a little different. Harvey Donaldson devoted a chapter to it in "Yours Truly," describing how FJ Rabbeth developed it from the .32 Wesson case, then took his design to the Maynard Co, which first offered it in 1884 (Barnes says '82, probably because it was first chambered in that model).
But since Stevens later bought out the Maynard co., I suppose their "we" in the 1900 catalog could be interpreted as including products of Maynard as well, though that's clearly stretching the point.
Harvey also says that
before developing his .25 case, Rabbeth had necked the Wesson case down to .28, making it the first in that caliber. That cartridge, however, was not taken up by Maynard.