Bonn: 1787 / 2008, homeland history collection with thousands covers, cards and postal stationery including suburbs, city districts and Siebengebirge, as well good frankings, registered, censorship, airmail, railway mail, army postal service, taxe precu, accompanying letters for parcels, foreign mail, photos, documents, newspaper cuttings, post to Bonn and so on, in several letter albums in 6 boxes