4 M / 60 Pfg olive green provissional issue 1922 as a single franking on special delivery letter from Katowice to Aue, ZKr Katowice 12.6.1920 (141.5) as well additional cancellation black rectangle cancel with two lines "from the postbox", the additional cancellation implied, that the registered and / or special delivery cover, contrary to the regulations, from sender not at the post-office counter delivered was but rather within a mailbox found was, consequently the postal administration no responsibility for possible delays at the delivery takes over and all referring to this rejects claims for damages, this secondary postmark is very rare, there are only a few examples known, the here offered letter was in the Table in the OS handbook under the running number 18 documented, arrival postmark ZKr AUE 13.6.1922 at back, height franking from the beginning phase the inflation period, transport traces