Those photos were taken at the New England Air Museum's hangar pre-1979.
They were on temporary loan and the museum did a cosmetic restoration to the Spit. The Mustang was a flyer and I believe at one point Len sold the P-51 and later repurchased it. At one point, it had a forced landing due to an engine failure in North Carolina. Landed on a highway and chewed up a station wagon in about 1973-74.
See:
http://www.mustangsmustangs.com/p-51/su ... 3990.shtml
The Spit is also unique in that it raced in the Tinnerman Trophy (or Bendix, I'm getting old!) Race. I think that's why NEAM was really interested in it as they have a pretty nice collection of original Racers. SEE:
http://findarticles.com/p/articles/mi_q ... i_n8920718
I've got slides of this Spit in the temporary Camo Paint when it was on display at NEAM. Just haven't scanned them.
Jerry
Jerry