SBGallery:
Alexander Graham Bell on 17th Street Near the Executive Office Building, Washington, DC, circa 1904
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The Silver Dart biplane, the first airplane to fly over Canada, Nova Scotia, Canada, circa 1909
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Men pull the Silver Dart biplane across a field during testing, Nova Scotia, Canada, circa 1908
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The inventor observes a man test the strength of Bell's tetrahedral design, Nova Scotia, Canada, August, 1903
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Dog Teams Taking Part in a Lighter Form of Transportation, Gaspe Peninsula, Quebec, 1934
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Mount Kennedy's Northeast Ridge, National Geographic Expedition Camp, Yukon, Canada, 1935
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Robert Randall and Bradford Washburn Preparatory to a Photographic Flight, Yukon Expedition, 1935