yeah I was thinking inthe 1860's the south didn't make 44 c open top navy's. Right? I believe the brass was stonger then too and also in the 1960's. I don't like brand new 44c brass open tops.
In the 1860's there were no brass frame .44's open top or otherwise. In the 1860's brass frames were really a form of bronze. The brass used in the 1960's and 70's is the same brass they use now.