The largest run of an error on a postage stamp is the 2011 United States 'Statue of Liberty Forever stamp'. The stamp shows the replica of the Statue of Liberty in Las Vegas rather than the original in New York. The stamp was released in December 2010 and the error was not noticed until March 2011 when it was identified by Sunipix, a stock photo agency in Texas. Ten and a half billion of the error stamps were produced.5
Design errors are different from any other types of errors including typographical errors, incorrect watermarks, overprints, paper types, perforation, and gums. There are the following types of design errors:6
Hess Design Works.com US Stamps - Legends of the West. Retrieved February 13, 2009. http://www.hessdesignworks.com/Legends.html ↩
"29c Legends of the West recalled pane of twenty". postalmuseum.si.edu. Retrieved 2023-06-13. https://postalmuseum.si.edu/object/npm_1999.2004.1009.1-20 ↩
"Postage Stamp Design Errors > Country: Malta". Postage Stamp Design Errors. 2014-01-22. Retrieved 2014-03-24. http://topicsonstamps.info/errors/malta.htm ↩
"Postage Stamp Design Errors > Country: New Zealand". Postage Stamp Design Errors. 2018-09-06. Retrieved 2018-09-06. https://www.nzherald.co.nz/nz/news/article.cfm?c_id=1&objectid=12118561 ↩
"Linn's: Vegas Liberty undetected for more than two years". postalnews blog. 2011-06-13. Retrieved 2013-06-17. http://www.postalnewsblog.com/2011/06/13/linns-vegas-liberty-undetected-for-more-than-two-years/ ↩
Stamp Design Errors Retrieved November 20, 2018. https://oldbid.com/news/coins-stamps/stamp-design-errors/ ↩