10 beautifully engraved Certificates from the 20th Century . These historic documents were printed by the American Banknote Company and others noted printers. There is one certificate from each decade. The company's include Union Pacific, Pepsico, Broadband.com, Studebaker, Pan American Airways, New York Connecting Railroad, Buckeye Steel, Irving Bank and Trust, New York Central and Continental Canning Company. This is an incredible package of companies that were hand picked by our staff to reflect representative certificate styles issued during the 20th Century.