1949 / 1965 (approximate. ), extensive collection "special stamps on cover" (only a few postal stamps as well) with some hundred covers and cards, focal point by the single- and multiple franking the first issues with useful, interesting mixed frankings, stamps with printers mark respectively printers mark, better First Day Cover (amongst other things 286-288), souvenir sheets (amongst other things all Marx souvenir sheets on R special delivery covers and twice souvenir sheet 19), into the bargain about post to 1965 till 1990 as well a little SBZ with amongst other things souvenir sheet 3A / B multiple, souvenir sheet 5Y on registered cover and souvenir sheet 6 with additional franking on registered cover, many better documents were single from collector on auctions bought!