UPDATE: Grant spotted this video whose first segment includes the music at the bottom and glimpses of some early prototype jeeps (Bantams various points, mostly between :30 and 2:20 and a Ford GP around mark :50):
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Originally published March 27, 2019: Carl pointed out that the 1944 sheet music for “The Caissons Go Rolling Along” sheet music included a jeep on the cover (#1 below). After some searching on eBay, some other popped up. I bought the bottom one that features the Ford GP and Willys MA.
wat key is that in ? — my navy ww2 hero father hated this song — ANCHORS AWEIGH !!