As I am already in the process of making the life of the referee for Germany a little busier and complicated, I would like - before throwing more at him - to ask more widely how to deal with the two replacement series and the treasury notes that were printed between 1963 and 1974 but never issued.
The replacement note series can be found here:
For the treasury notes two entries are already on Numista, and I've requested the rest:
The German wikipedia has a nice summary: https://de.wikipedia.org/wiki/Bargeld_der_Deutschen_Mark#Ersatzserie_(BBk_II)_und_Bundeskassenscheine
key bits translated:
In the event of a major disruption to the circulation of money, which would have required an exchange of banknotes, the Bundesbank decided on January 20, 1959 to produce printing plates for reserve bank notes.
The printing of the banknotes began in 1963 and lasted until 1974, since the replacement of the amount of the banknotes actually had to be adjusted. The notes for 20 and 100 marks were printed by the Federal Printing in Berlin, the notes 10 and 50 marks from the private banknote printing Giesecke & Devrient: almost 785 million banknotes of a total of around 29 billion marks (approx. 25 billion marks for West Germany and approx. 4 billion marks for West Berlin) were made in several tranches and half of them were stored in the strictly secret Bundesbank bunker Cochem from 1964 to 1988. The rest was stored in the Bundesbank vault in Frankfurt.
The Bundesbank and the Ministry of Finance decided in 1988 to destroy the replacement money, since the security features were no longer sufficient to effectively prevent counterfeits. So there was no longer any benefits, and cash was no longer so urgently necessary due to electronic payment transactions.
However, some of the banknotes were stolen from the commissioned private disposal companies, so that some notes are still in possession of collectors.
However, the Bundesbank intervenes in public auctions by confiscating replacement notes and the federal treasury certificates as stolen goods.
So my basic question: enter them under banknotes or not?