It's like Bernadelli/Bernardelli--the latter being the correct spelling, the former a very common mistake. Heinrich August Lindner was the gunmaker, and a very good one. Made excellent guns, many sold under the Charles Daly name, until around 1915. His guns can be identified by his initials (HAL) over crossed pistols on the barrel flats, as his proprietary maker's mark. I don't know of any gunmaker named Linder. I think it's like the Bernardelli misspelling.