I'll toss this one out to the group. Has anyone ever seen, either in person or in pictures, an inspection stamp from Lockheed Burbank or Detroit, from the 1930's? I've got the current spec for inspection stamps in a file around here somewhere, but it dates from the early 40's. I need to replicate a 1930's stamp, the earlier the better, for a project. My go-to guy for all things early Lockheed has not seen one and is not sure if they ever used them, until the late 30's.
I can fudge one up, but would rather copy a correct one if I can.
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