Deutsche Dienstpost Niederlande 23 letters and cards including postcard 6 Pf. KLV Lager Bösegrunde Sudetenland 15.3.45 to Amsterdam, German franking used in the Netherlands, postage free Fieldpost, registered, blind cancellations, red Zurück an den Absender/ neue Anschrift abwarten (return sender/ wait for the new address) on censored letter, letter with Mussert seal and letter with Absender nicht zur Benutzung/ der Deutsche Dienstpost/ Niederlande zugelassen (sender not permitted to use the DDPN)