Well, the Winfer book seems to be lacking, so.....HELP!

I am building Henry style rifle, and need to know how the firing pin is arranged.
Pictures of assembled rifles doesn't show that.
I think it is similar to the Sharps firing pin.

Anyone with an Alex Henry side hammer rifle that can share some info??


Dumb, but learning...Prof Em, BSc(ME), CAE (FYI)