Why would one want a safety on a hammergun?
The earliest pinfire sporting guns (before 1860) sometimes had features carried over from muzzle-loading days, such as grip safeties. I guess gunmaking habits die hard, or new clients wanted the same features. In some cases, muzzle-loaders converted to pinfire retained grip safeties.
Hammer rifles for dangerous game often had sliding stalking safeties on the hammers, I suppose to be able to carry the rifle through heavy brush, much like intercepting sear safeties on hammerless guns.
