I sort of bought this on a whim early this morning. There is actually another one I want but the one they had of it was creased so I passed on it. It was an exhibit called the Hydrosphere. It pictured an aircraft hooked up to a large "float" that was on a body of water. Hard to explain really but it was fascinating to say the least! But I did manage to get this one from the Palace of Fine Arts and it looks to be from a booklet. I thought it interesting and it is in great condition.
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