View of large window taken in factory.

View of large window taken in factory.

View of large window taken in factory.

Three large windows, taken in factory.

Three large windows, taken in factory.

Three large windows, taken in factory.

View of tall narrow windows taken in factory.

View of tall narrow windows taken in factory.

Airplane view of factory.

Airplane view of factory.

Sections of window wall at factory.

Sections of window wall at factory.

Sections of window wall at factory.

View of test for window in Chelsea exchange.

[Interior, view of window.]

View of test for window in Chelsea exchange.

Long Island City. View of factory from N.W.

View of test for window in Chelsea exchange.

View of test for window in Chelsea exchange.

View of conduits and boxes taken in the Postal Life Building.