Are we are talking about this thread's subject?:
viewtopic.php?f=3&t=33923There was an example in our recent P-51D Mustang book. I'm with Dan here - The grey fuselage marking there was created by dirt, as is, IMHO, the example in the pictures in the above thread. The port side grey is very common, and is often evidently darker near the spill area of the fuselage tank filler. The starboard is less seen, and I'm guessing was created by the overflow and exhaust - the latter also contributing to the port too, of course. We can't see the wing insignia, the only bit of the upper wing white looks white, but in the circs to little data to prove it either way.
I'm no expert on USAAF markings, but those I know tend to the dirt theory. There's too little to support the 'greyed' markings theory and too much against, IMHO, but happy to see good evidence to show otherwise.
1 - I've seen (or heard) of no documentation or firsthand crew accounts of the practice of greying out markings; 2 - in natural metal aircraft clean (bright) metal and dirt adhering to paint is explicable; 3 - all the other marking tonedowns I've seen are either very rough and obvious,
or documented by official orders; 4 - why would you tone down white on a natural metal - more reflective - aircraft?
Oscar's IPMS Stockholm reference is nice, but the author gives no source to his belief the markings were greyed, I don't give this reference weight. A source would be good.
The aircraft in our MMP book. Note the graduating from forepart grey to near white on both the D Day stripes and insignia, as you move from the fuel-filler point.
http://mmpbooks.biz/mmp/books.php?book_id=102USAF Photo
I've an open mind, more firsthand / primary evidence welcome!
Regards,