Various brochures & newspaper article: Ott, C., the postmark the Hanseatic league cities (1925) and the postmark from Schleswig Holstein (1925) ; Berchelmann, Dr. W, the Thurn and Taxis small postal agency and the rural mail messenger system in the Grand Duchy Hessen (1925) ; Reinheimer, A., illustrated price catalog of the German postal devaluation types (1894), catalogue of the German devaluation types from 1849-1875, booklet and II., with 600 illustration (approximate. 1900), in addition to it fanfold with seeming 1000 illustration condition III-V. Photos of this collection

Postal cheque clients in the district of the post office giro Cologne. Index 1930, tooled near the post check office Cologne, after the Stande of 1. January 1930. Empire printing office Berlin. Softcover.