First off, thanks to the General for sending the plates he has access to. They're very helpful, but I'm trying to track down more of them. The Naval Institute Press has about four of them, but they want $23.75 a piece for them! From what I can tell, some information out there is probably incorrect according to what I can see in the plates and the few pictures I've been able to locate. Hopefully, someday someone will put the entire 1875 Regulations online so we can do some better research.