Alexander Graham Bell (right) experimenting with an x-beam tetrahedral kite with designer Mr. Baldwin, early 1900s. Hand-colored halftone of a photo

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Alexander Graham Bell (right) experimenting with an x-beam tetrahedral kite, designer Mr. Baldwin next to Dr Bell, early 1900s. Hand-colored halftone reproduction of a photograph

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Size: 6182px × 2987px
Photo credit: © North Wind Picture Archives / Alamy / Afripics
License: Licensed
Model Released: No

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