Rimmed straight case with round nosed lead heal type bullet.
This scarce cartridge is of English origin, probably from the middle or late 1870s. While similar to the .41 Short Colt Single Action cartridge, it has a slightly longer case length. .41 calibre cartridges were popular in the United States for both pocket revolvers and medium sized police and self defence revolvers, probably because most American .44 and .45 revolver cartridges were heavily loaded, so unsuitable for use in small pocket revolvers because the recoil would be difficult to control. By contrast, the .41 or .410 did not prosper in Britain, since they offered little in contrast with the well-established .450 Adams, which was sufficiently sedately loaded to be usable in small pocket 'Bulldog' type revolvers, and was ubiquitously available in Britain and its Empire, being a service revolver round, and also in Europe, where it became quite popular.