Corinphila Auction 284-290 Day 4

French Guyana, Cayenne 'Winged Helmet' issue 1921 (July 8): T.A.G. 75 c. black on bluish, imperforate, a fine used example with fair margins all round (shaved at right, detached for inspection and hinged back), cancelled AVION in black, on large part Parcel front from St. Laurent du Maroni to Paris, in combination with 1908/25 45 c. grey-olive and 1 fr. carmine both tied by light datestamps of St. Laurent in black (Dec 18). Part Customs label in green at left (the sender was mailing dried butterflies 'papillons sêches'). An exceptional and rare usage from the Prussak correspondence. Yvert = € 900 for the Airmail stamp alone.