Agriculture, German Reich 1928, decorative envelope "34. Agricultural Wander exhibition Leipzig 5. To 10. June 1928", as registered mail with 5 Pfg Schiller and 40 Pfg Leibnitz free done, both stamps punching the "D. L. G. " (German agriculture society Berlin), with postmark "BERLIN SW 11 14.5.28" to Leipzig (arrival cancel), envelope above middle small fissure