When Gladys and Harold Degree pulled the siding off their Colchester, VT home, they made a surprising discovery--five large, full-color posters from an 1883 visit by the Forepaugh Circus. Conservators at the Northeast Document Conservation Center made another surprising discovery underneath--posters for Forepaugh's rivals, the John B. Doris Circus. The newly conserved posters are on display at the Shelburne Museum through October 24th. (via)
Circus History, with photos, logos, show routes, and more. See also Circus World, Circus Web, and Princeton's Circus Poster Archive.
Circus Museum : vintage circus posters