Auction # 2412 ARGENTINA: Special April auction

GJ.9A, 4Rs. chocolate, oily impression, fantastic example with some nice printing varieties: White spot at top left, "COROEOS", apostrophe at right of "OS", "AIREA" instead of AIRES, left face value joined to the bottom left circle by white line, etc. With some small defects but of excellent appearance! Signed by Victor Kneitschel on back