This is a photo of my Modele P.04 display.

[Ron Wood]

That is a really nifty label to display with the Luger! A small point of clarification...although the Navy Luger is officially designated "Pistole Modele 1904 (P04)", that being the year it was adopted by the German Navy, actual 1904 Navy Lugers are quite rare and have significant mechanical differences from your Luger. Your Luger is a "1906 First Issue, Altered". It was manufactured around 1906 with the thumb safety "on" in the upper position with the lower position polished bright to indicate the safety was engaged. Rather than "in 1906 the thumb safety was modified..." your display should indicate that the piece was manufactured in 1906 and some time after 1906 it was modified to have the thumb safety to be "on" in the lower position and the "Gesichert" marking added. A slight distinction true, but for such a nice display it is worth having this small degree of increased accuracy. You have a very nice Luger.