I saw this photo of Walt Disney at a blog called
From Mars to Marceline™ 
It's hard to tell where it was taken or exactly when. It could be in Florida at the beginnings of "The Florida Project" or maybe Anaheim at the time of clearing the orange grove.
Anyone know? It's the sort of thing Michael Barrier or Didier Ghez might know. Seldom does one see a photo of Disney in such a state.
The Mars to Marcelline blog is by Eleonora Duvivier
and it contains excerpts from a book she has written called from Mars to Marcelline. She is clearly a huge Disney person and writes poignantly about it. She is from Brazil originally and her first entry on
Disney Nationality is intersting.
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Update: Didier Ghez tells me this picture was taken in Greece during the filming of the 1964 release the Moon-Spinners (
review at Ultimate Disney).