And I guess I could have been wrong. The Dickson guru said the shotgun was registered in the Dickson records as "Central Fire" in 1865. The first known Reilly ad for a "Central Fire" (presumably shotgun though this is not specified) was 1865.

I'm still not convinced this wasn't a converted pinfire and did not have the chance to really look it over in detail. Glancing at the barrel breeches in slanting sunlight show no immediate indications of filled pinfire apertures though these can be artfully concealed; and there was some suppressed hostility at the bare mention of this possibility. If the records for the gun exist. . .it stands without challenge of course.

[Linked Image from i.imgur.com]