Auction # 2510 WORLDWIDE + ARGENTINA: Special March auction

Argentine League of Fight against Tuberculosis: charity cinderella of year 1969, complete sheet of 20 labels, PROOF on glazed paper, without gum, imperforate. Four sheets, one with normal impression, another one with BLACK COLOR VERY SHIFTED, one with variety "red spot beside one stamp" (repetitive), and the other one "letters CU in TUBERCULOSIS defective", excellent quality, rare lot!