Over 35 years ago I went to a gun show in Norfolk, VA and traded for a takedown Winchester high wall. I was actually getting only the action because it had a horrendous stock made of yellow pine(?) and a barrel screwed in (no takedown ability) and chambered in 25-35. The cartridge can best be described as a necked-down 30-30 carrying a long bullet of about 125 gr or so. The caliber enjoyed modest success in the late 19th and early 20th Centuries in lever rifles of the 30-30 class, but never really gained wide market. I’m sort of surprised anyone would spend the money to have one custom built, but quien sabe?
Froggie
PS Did I mention I got a Lee Loader kit in 25-20 from Dixie Gun Works to load for it?