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Books about Coson:
The Coson Carriage Collection At Beechdale by Thomas; Morrow, Rodger (ed.); The Duke of Edinburgh (intr.) Ryder (1989)
James R. Coson et al., Petitioners, v. United States et al. U.S. Supreme Court Transcript of Record with Supporting... by MORTIMER M CAPLIN and ROBERT H BORK (Oct 30, 2011)
SAN Journal of the Society for Ancient Numismatics : The Search for Coson; Pergamum - The Kingdom That Was Given... by Lawrence A. Adams, David R. Sear, Warren W. Esty and Simon Cordova (1985)
The Coson Carriage Collection At Beechdale [ Beechdale Farms, Bird In Hand, Pennsylvania] by Thomas; Introduction by Duke Of Edinburgh Ryder (1989)