This is the drawings from W.J.Jeffery's patent 8872 striker mounted peepsight.

This is how much of that sight remained with my rifle to present time.

I've been at work in the machine shop reproducing the missing parts.

It's a quick-change regulated peepsight, indexable from one click stop to the next. The patent shows a cam regulated from 100 to 500 yards in 100yd increments.

Very cool.

Anyone here ever see one in the flesh or have images of one?

--Tinker