I recently found an x-ray photo of another C&R handgun just by looking around on the web. Sometimes people who own guns who also work in medical labs...
Looked on the web for an x-ray of a Luger and didn't find anything. Unfortunately someone else named Luger is very prominent in the X-Ray field, so I get a lot of irrelevant results.
I did run across something interesting. George Eastman of Eastman-Kodak fame, shot himself with a Luger.
Eastman didn't invent X-Ray photography, just sold a lot of the film.
Article here of interest about the actual Luger he used, may be in a collection somewhere:
http://www.poudlard.com/annonce/guarino/luge1900.htm
Interesting what connections one finds randomly browsing the web.
-- Dan