Hello all.
Nick, 1st FS rudder was always black, and early 34th FS white.
The upper illustration (showing tails) is an old one and is too bright.
Alex, thanks for saving some memories.
Last but not least, there is a website
http://www.413thfightergroup.com
with many photos of P-47Ns
http://www.413thfightergroup.com/p47n.html
Zoran