6030854 Theatrical billboard advertising a performance by Albert Walker, printed by the Calhoun Steam Printing Company, Hartford Connecticut, USA, 1855 (litho) by American School, (19th century); Private Collection; (add.info.: Theatrical billboard advertising a performance by Albert Walker, printed by the Calhoun Steam Printing Company, Hartford Connecticut, USA, 1855.); Look and Learn / Valerie Jackson Harris Collection; American, out of copyright.