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Leroy Grumman autograph auction results
Leroy Grumman · $70.15(1895-1982) American aeronautical engineer, test pilot, and industrialist. In 1929, he co-founded Grumman Aeronautical Engineering Co., later renamed Grumman Aerospace…Sep 16, 2018 · Auction #1605 · Lot 499
(1895-1982) American aeronautical engineer, test pilot, and industrialist. In 1929, he co-founded Grumman Aeronautical Engineering Co., later renamed Grumman Aerospace Corporation, and now part of Northrop Grumman. This item is a signed vintage envelope.
Sep 16, 2018 · Auction #1605 · Lot 499 · More by signer