Auction # 2510 WORLDWIDE + ARGENTINA: Special March auction

9 Covers used between 1916 and 1920, 4 by registered mail abroad (to PUERTO RICO, rare destination, Chile and USA), al including in their postage stamps of the 1916 "Centenary of Independence" issue, sometimes combined with values of other issues. Excellent quality, market value of each piece is between US$10 and 50, very good opportunity. IMPORTANT: please view all the photos of the lot, because all the items have been scanned (both sides)