1920/22 to Schleswig, extensive collection mint never hinged, mint and canceled, Allenstein partly also specializes overprint type, colours, blank fields, printing date, also some parts of sheet, postal stationaries and covers, better valueses like Marienwerder no. 1/14 **, 17 x * 20 o 29 b o checked Schulze BPP, Schleswig D 9 on piece expertised Gruber BPP