To encourage the collecting and dissemination of information on this very popular field of Canadian philately, an up-to-date listing of all reported tagging errors in Canada is available for your searching.
This information was gathered by John Jamieson of Saskatoon Stamp Centre and Mirko Zatka, both avid collectors of tagging errors. Tagging errors were first studied and reported by Ken Rose (Calgary), then by George Dunsay (Massachusetts), followed by Del Peters (Saskatoon) and now Mirko Zatka (Alberta).
There are several different searching options available to you, depending on your desires. Choose one, or more options. The more criteria you provide, the narrower the search (i.e. the fewer stamps will be found, if any). It is very possible that certain criteria combinations will yield no results!