Real Navy Sight...
 

...on e-Bay...

http://cgi.ebay.com/Luger-P-08-1906-...QQcmdZViewItem

Thanks for the "heads up", Pete. The two digit serial number should enable us to keep track of it if it ends up on a 6 inch rebarrelled 1923 commercial. In any event, make sure you see halos, Crowns touching "M's" and, of course, the wide rear toggle flange pin.

Don't forget about "patina" as well...

Pete, with all due credit to you and, of course, Albert, you are absolutely correct!