Edwin Powell Hubble and two unidentified men outside a building at the U.S. Army Ballistic Research Laboratory

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  Edwin Powell Hubble and seven unidentified men in an office at the U.S. Army Ballistic Laboratory, at Aberdeen Proving Ground

  Manuscripts

  Edwin Powell Hubble and seven (7) other men in an office of the supersonic wind tunnel building at the U.S. Army Ballistic Laboratory, Aberdeen Proving Ground. Hubble is third from the right. Note in the hand of Grace (Burke) Hubble: "EPH (on left, Atkinson of Greenwich Ok.) office in Supersonic Wind tunnel Building APG".

  mssHUB 1043 (6)

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  Edwin Powell Hubble and Henry Stimson at the wind tunnel at the Ballistic Research Laboratory

  Manuscripts

  Edwin Powell Hubble and Henry Stimson at the wind tunnel at the U.S. Army Ballistic Research Laboratory. Note in the hand of Grace (Burke) Hubble: "EPH in the wind tunnel at the Aberdeen Proving Ground with Henry Stimson [?]." Hubble is on the far left, holding up a pencil in his hand. Hubble and Stimson are standing in front of a plan on an easel.

  mssHUB 1043 (3)

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  Edwin Powell Hubble, Henry Stimson, General Harris, Colonel Eddy, R.W. Kent and 5 other unidentified men viewing the supersonic wind tunnel at the U.S. Army Ballistic Research Laboratory

  Manuscripts

  Edwin Powell Hubble, Henry Stimson, General Harris, Colonel Eddy, R.W. Kent and five (5) other unidentified men witnessing a test at the supersonic wind tunnel in the Ballistics Research Laboratory. Note in the hand of Grace (Burke) Hubble: "EPH, Henry Stimson, --at right, Gen. Harris, Col. Eddy, R.W. Kent. APG [Aberdeen Proving Grounds] --Supersonic Wind Tunnel. Huntington Library." Hubble is standing at the far left, with his back to the camera.

  mssHUB 1043 (7)

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  Equipment and machinery at the U.S. Army Ballistic Laboratory

  Manuscripts

  Equipment and machinery in the U.S. Ballistic Laboratory. Photographer: Photographic Measurements Section, Ballistic Research Laboratory Note in the hand of Grace (Burke) Hubble: "EPH, Huntington Library Collection."

  mssHUB 1044 (5)

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  Equipment and wires in a room at the U.S. Army Ballistic Laboratory

  Manuscripts

  Equipment and wires in a room at the U.S. Army Ballistic Laboratory. Photographer: Photographic Measurements Section, Ballistic Research Laboratory Note in the hand of Grace Burke Hubble: "EPH, Huntington Library Collection."

  mssHUB 1044 (4)

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  Viewing and camera equipment, U.S. Army Ballistic Laboratory

  Manuscripts

  Viewing and camera equipment at the U.S. Army Ballistic Laboratory. Note in the hand of Grace Burke Hubble: "EPH, Huntington Library Collection."

  mssHUB 1044 (3)