1786 onwards, letters canton Obwalden, partly an exhibition collection on pages with many prephilatelic letters and letters with stamps as SACHSELN on 2 ex. rayon III, letter 1853, cancellations Obwalden, Sarnen (including 3 sides opened letter with content with Gratis stamp), Engelberg, Giswil, Giswyl, Schwendi and letter from USA febr,1881 with 3 cents and 2 ex. 10 Rp postage due to nach Saxlen, some stamps and postcards, etc, many with description and important documentation, in box