The letter is signed by A.F. Baldus, Assistant Secretary. This adds provenance and historical context to the letter.
Pickwick-Greyhound Lines Lettering for Terminal and Office Windows 1928
Pickwick-Greyhound November 1928 Newspaper Expansion News
Pickwick-Greyhound bus OLD BUS PHOTO
Southwestern Greyhound Lines Round Up Magazine December 1940
Greyhound Lines Lower Fare Everywhere City to City 1928 Brochure
Greyhound Lines Dining Car Menu Southeast Missouri Division 1928
