Lugers came in 7.65mm and 9mm, but *both* use the same magazine. what brand of 9mm were you trying?
I bet it is a 1920 commercial made in 7.65mm (also called 30 luger).
yes you did, this is the questions I have on my desktop for people asking questions. You asked about 30 questions, so sometimes it is hard to sort through.
Value, well, provide pictures and we can guess, anywhere from $300-$700, with the middle ground most likely...
There is a ton of information here, almost all on lugers.
Ed