Yes, and again: Waaah, I had a 50/50 chance to get it right and I coose the wrong path... Well, in this case Jon Guttmann and Bob Perason in WDF Special Nieuport Flyers of the Lafayette seem also to be unaware of this because N. 11XX, N. 1120, 1131, 1290 and 1292 have CDL undersides there. And in Wilbergs book Reservats N. 959 has CDL undersides too. And so, if these specialists went wrong, I can live with it. Repainting the undesides of my "Alfred" seems impossible for me. ... And I'm sure, on that special day in early 1916, when they finished N. 964 in the afternoon at the Nieuport factory and they had only one airplane to paint before dinner, their spraygun startet to spit and they sadly run out of blue paint. And because supply just arrived on the morning of the following day, they finished the undersides of N. 965 in clear doped linen ...
![Wink ;)](https://forum.ww1aircraftmodels.com/Smileys/default/wink.gif)
Regarding the symbol, I actually took this, printed it as big as possible, took a black pen, changed it according to the photos and scanned it again. I think there were teeth in this skull, not just a line and some letters seemed to be a little different, as the bones (I'll send a pic later!)
Thanks about the propeller, you are right, the tips are too round. I should have taken a picture of an actual Levasseur, not the drawings in the datafile...