Regional registry
Pennsylvania
2 documented locations. Others may exist; funding to check ran out.
Department of Redundant Plaques
A three-room borough office responsible for the upkeep of historical markers across four counties, best known for its collection of plaques that commemorate other plaques. Under a 1966 procedural rule, any relocated marker must be memorialized at its former site — a requirement the office has followed to its logical conclusion for six decades.
Verniel Bros. Courtesy Sample Carpet Barn
Six oversized carpet sample books, each approximately 11 feet tall and fabricated in painted sheet metal, stand fanned open in front of a low retail warehouse outside Riverton Gap under the name Courtesy Sample Carpet Barn. The business appears to have sold discount flooring, remnants, and roll ends, while the display was apparently maintained by the Riverton Gap Merchants Association after the store's partial closure in the late 1990s. What merits a full dispatch is the surviving roadside sign promising "SEE ALL 842 PATTERNS FROM THE HIGHWAY," despite the visible books showing only broad color fields and one still-legible label for a discontinued commercial loop called Provincial Oatmeal. A second, smaller sign refers to a 1988 demonstration permit and to "approved turning radii for tour coaches," suggesting a promotional arrangement more elaborate than the present gravel lot would indicate.