1921, St. Laurent du Maroni issue, Typographed from Woodblock Plate, 75 c. violet on buff paper, rouletted on two sides, with part of the Control cachet 'SOCIÉTÉ DES TRANSPORTS AERIENS GUYANAIS / ST. LAURENT DU MARONI' in red, tied by boxed “AVION” to small piece, a fine and very rare stamp, a.o. signed Scheller