Location:

• La Porte, Indiana.
• 1131 S. 55th Avanue, Cicero, Illinois.
• 141 Spring Street, New York
• Eastern office and second factory in New York, branch offices and warehouses in Philadelphia and Chicago.

Timeline:

• 1921?-1926-1939-?

History:

• Formed from the union of American 3-Way Prism Company and American Luxfer Prism Company. Some sources put the merger at November 17, 1926, but a 1921 American Builder ad uses the joint name.

Errata:

• Sidewalk marker photograph credit Berry College, Rome, Georgia (grabbingsand)

Paper:

• Everlasting Skylights · American Builder · January 1921