Hallo hallee Stefanie!
Nice to see another lady posting here.
Welcome to this fine board.
Gotta warn you, that Erma might not be the best shooter, even new out of the cosmolene.
I had picked up a few, years back, and not a one would cycle right.
Lots of FTE and FTF problems.
I think post war, Erma quality control went straight down the tubes.
Good luck on finding those ivory grips, I found some lovely old stag ones on Ebay right before Christmas.
Do be aware that Luger collecting is very addictive and next you will want a vintage one, (or two or three or...well you get the idea).
Edit to add:
Whoops, sorry, I just reread and saw that your *new* Luger is the one in cosmolene.
Did your Ermas actually work?