15 Pf. A1. 2 15 Pfg. charity se tenant in Block unit with S 91 and additional franking (amongst other things booklet pane part with 2x W 21. 2) on Zeppelin cover from FRIEDRICHSHAFEN 28. 6. 32 with all postmarks the Switzerland flight, cover left minimal by which opening shortened, slight defect by a value the 20 Pfg eagle, otherwise decorative and scarce document, Michel 1. 400.- (former starting price 400)