NorCalMikie
Gold $$ Contributor
Any chance the brass had a Lacquer finish on it before you started sizing?
Some do. Maybe got a partial removal when sizing?
Some do. Maybe got a partial removal when sizing?
This is your brain....
View attachment 1168574
This is your brain on drugs....
View attachment 1168575
Maybe??looks like the case sat part in solution/part in air and got stained.