Articles

April 14 1930 Pittsburgh Press
1930 June Popular Science
1930 August Pittsburgh Post
1930 August 20 Harrisburg News
1931 July 19 Pittsburgh Press

Brochures

1930 Brochure For Sears (low resolution)
1930 Brochure I
1930 Brochure II
1930 Brochure III
1930 Brochure IV
1931 Brochure (low resolution)

Photos

Patents

US Patent 1,941,162
US Patent 1,942,237
US Patent 1,965,450
US Patent 1,965,451