Very cool. Not sure I understand all of your reply though. If you have enough patience, I would appreciate a little education.
In reference to the statement "Pg. 15." R series was about the last 3/4 of 1928.
What does "Pg. 15." refer to? Magic Luger Book page 15?
10,000 to a block - - a block is the production run...when they hit 10000 they started over at 1 with another suffix, is that correct?
Thanks - BTW, well moderated forum you guys have here...read quite a few thread...seems like all adults