The AU with John and Rodney in 1809 which features gratuitous mentions of cravats, knee-breeches and hessian boots?

Or the story where Rodney mocks John incessantly for having brought War and Peace with him to another galaxy (an actual print copy, no less), until John finds out that when they first stepped through the wormhole, Rodney had a very old and battered and beloved copy of Austen's collected works in his backpack?