In the period 2006 - 2009 several Prestige Stamp Books were found with duplicated stamp pages or other errors. The situation was so bad that people came to expect an error as the norm, rather than something exceptional.
Now a collector sent us a picture of what is, as far as we know, a previously unreported duplication, in the World of Invention PSB from March 2007.
This PSB was bought at a stamp fair recently and the duplication was not revealed until the collector was studying the book at home!
Earlier reports are on our website, because the blog hadn't started when they were discovered.
The most prolific set of errors was on the Machin book. Examples exist with any of the stamp pages duplicated, but perhaps the oddest - given it's heavy card composition - was duplication of the front cover!
Quality control on make up (if not on print quality) has improved greatly since 2009 with no similar errors reported. But we are always eager to report new finds!
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