1 Gr. perforated, in the block of four on postal service certificate, franking tied by Prussia two ring cancel "Oldesloe 25 9 69", inside negative posthorn seal stamp the Hamburger sub-post office 3, with single circle postmark "Hamburg 26 9 69" again returned to Oldesloe. Left lower stamp slightly corner crease. Provenance collection Spalink, expertized Pfenninger