Offered is an attractive and well-selected Switzerland Pro Aero collection (1919–1972) including early airmail issues and the 1932 Geneva Disarmament Conference series. The lot contains a strong representation of the classic Pro Aero period, including: • Early Pro Aero issues from 1919 • “Angel” and winged issues of the 1920s • Complete 1932 Geneva Disarmament Conference set • 1938 Pro Aero issue • Post-war Pro Aero issues (1946–1972) • Several better semi-postal airmail stamps • One attractive piece with commemorative cancellation Includes both used and mint (MNH / hinged) material. Condition generally good to very good with fresh colours and well-preserved perforations. Some minor traces of age or hinge marks may be present on certain items (see photos for detailed impression). A very nice opportunity to acquire a nearly Pro Aero representation from the early classic period through the modern era. Carefully stored and well presented.