The Columbian press was invented by George Clymer, probably in 1813, inspired in some measure by the earlier Stanhope press. It was designed to allow large formes, such as a broadsheet newspaper page, to be printed at a single pull. The press worked by a lever system, similar to that of the Stanhope press and quite different from the toggle action of the slightler later English Albion press. Clymer's new iron press was first advertised in April 1814. Although Clymer manufactured and sold a few presses in America, he found the market difficult and moved in 1817 to London, where he began a successful manufacturing programme that lasted well into the twentieth century; Columbian presses were also manufactured in various European industrial centres. The press is sometimes, incorrectly, referred to as the 'Eagle' press due to the characteristic bald eagle counterweight which usually sits on the top lever. Some Columbians have the counterweight in another form (a simple ornament, a lamp, urn, or orb).
- Moran, James (1969). "The Columbian press". Journal of the Printing Historical Society (5): 1–23, plates 1–17.
- Oldham, Robert (2014). "The Columbian press at 200: a preliminary report on a world-wide census". Journal of the Printing Historical Society (N.S. 21): 51–66.
The oldest known columbian press to survive belongs to Paul Carthew of Printmac Corporation in Sydney Australia. Press number 10 dated 1818 believed to have been cast in Philadelphia and transported to London with 10 lots of castings to start production when George Clymer migrated in 1817
- Columbian Printing Press in the Collection of the Smithsonian Institution
- Columbian Printing Press in the collection of the Museum of New Zealand Te Papa Tongarewa
- Printing Yesterday and Today
- International Printing Museum Web site
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