1914/50(ca.), interesting unused/mint never hinged and used group of covers with some letters, including Allenstein sheet, Schleswig Mi.-Nr. 15-28 per 8 in mint never hinged blocks of four, Upper Silesia with better and an old collection of cancellations, some Marienwerder and Neusaar with a.o. 238ZI on cover and Mi.-Nr. 267-71(2) on letters, mostly good condition
