Auction # 2419 WORLDWIDE + ARGENTINA: Special May auction

Sc.129 and following, PERSONAL STUDY OF VICTOR KNEITSCHEL of the overprintes of the provisional issue of 1907/8, with hand-written texts and a lot of material neatly mounted and explained, 13 pages with stamps + other 3 with explanations, excellent quality, unique lot! IMPORTANT: Please view ALL the photos of the lot, because all the material has been scanned