by gmark » Wed Nov 20, 2013 8:23 pm
Hello Ray
My usual sources are Wolter KK "Die Postzensur" band 1, published in Munich in 1965 (an early book on censorship worldwide).
But a much better bet is the Dutch journal "De Postzak" No.155 of March 1988. The whole issue (pp409-456) was a b/w illustrated article 'Nederlandse Postcensuur in de Eerste Wereldoorlog'.
If you do not have easy access to this journal it can be borrowed from the CCSG library.
Please do not ask me for a translation.
Graham