Switzerland: 20th Century, 2 Collections, First - Swiss Flown Covers 1924 to 1951 Exhibition Collection STIPEX 1976 3rd, 18 covers, 6 before 1925, also PRO PATRIA PRO JUVENTUTE (2), AARAU (3); Second - 1919 to 1955 12 o.g. or n.h. sets and SS including C1,2 NABA SS, AARAU SS, PRO JUVENTUTE SS, plus more. Most on pages.
Est. Cash Val. $750 - 1,000. (Image)

Est. $750-1,000