Now this doesn't look like much, and being military appearing, it's outside my area of collecting. But it's one of only three I've ever seen, and they were never cataloged by Remington. And no mention in any of the various Remington Rolling Block reference books either!
What you see was listed as a .43 Spanish Rolling Block, with a 28" barrel. But if you look closely you might notice this isn't a military action at all, it's an octagon top Sporting Rifle action! And looking at the buttstock it's also a Sporting Rifle buttstock and buttplate too! And unless somebody did something stupid these were all chambered in .45-70, which is very rare considering these were built on the smaller #1 1/2 actions! This is a very rare #1 1/2 Cadet rifle built on special order for military academies, and the only #1 1/2 chambered in .45-70 cartridge! The 28" barrel would be odd for any military Rolling Blocks, but correct for the 1 1/2 Cadet rifles.
I called the auction back when this auction opened to ask how they determined it was a ".43 Spanish" and they said it was a "walk in" by a local seller, and he told them what cartridge it was in. So obviously they didn't check, which made most collectors ignore it at the auction thinking it was a South American full sized military rifle.
Since this auction is just 40 miles away I'll drive down next week to pay for it, and avoid shipping fees, or credit card fees. It slipped past anyone who might have figured out what it really is, so went for less than most military surplus Rollers go for!
Images from the auction: