My resources, to interpret proof marks, is very limited. I have one book that delves into proof marks quite expertly, but as usual I can't find that book. I am posting the proof marks on my little 8.15X46R. I have defined some of them, but there is a couple that I'm not sure of. I will use the symbol @ to represent the crown on my little chart. I am not going to state my interpretation, because I'm not trying to start an argument. The crown and the M7 are very tiny compared to the other marks.
@ @
B G
@
U @
7.7 M/7
8,24
756
Mashburn U
David a. Cogburn
