On Whitman's "Vault" books, they also did World War II: Saving the Reality, A Collector's Vault. It has an egregious numismatic error on page 56, where it shows two 20-mark notes, one allegedly a British forgery of the German original - dated 1910. Those notes were wiped out by the 1923 hyperinflation, and would never have been a subject of British forgery in WWII (and as far as in know, were not such a subject during WWI, either).

My main source was Murray Teigh Bloom who was a close friend and specialist on Counterfeiting and traveled the world interviewing the old counterfeiters, banks and government officials. The problem seems to be that you think it was for WWII. It was for WWI and the note was only a few years old then.

I was commenting on the fact that the note is in a book on WWII, and obviously was not in use during that period. Rather than the note, any of the stamps that the British produced for WWII would be good subjects to place on this page (they already have a 1941 ration book and 1944 ration stamps).

The Reichsbankotes (genuine and forged) are pictured in the section of the book that discusses black propaganda. They're used as general illustrations of government-forged currency, and not necessarily meant to represent notes of WWII vintage. However, I can see how that might need clarification, so in our next print run we'll add a sentence explaining that the pictured notes are examples of British forgeries from an earlier generation.