Gene,

I have seen that style of fence carried over to hammerless guns like this J V Needham built by W W Greener:-

[Linked Image from i.imgur.com]

The 28 bore at Southams looks to me as having been built as central fire although the Victorians clearly felt it economic to convert muzzle loaders to breech loaders let alone pin-fires to central fire.

Last edited by Parabola; 09/04/23 03:43 PM.