Ostropa souvenir sheet on not correctly franked cover franked registered printed matter with pictoral hand cancel "Königsberg 23. 6. 35", certificate with photograph Dr. Oechsner BPP (2011) : "the souvenir sheet as is shows the as usual, on the säurehaltige gum zurückführende browning and is in good quality. The cover is opened and folded. ", Michel for lots 900.-