LUCHTPOSTBRIEVEN

Kwaliteit: ✉

1937 N° 147 “5fr. green Stanley” and PA 2 “1fr. purple” airmail on a cover for an international postal money order sent from Luluabourg on April 23, 1937, to Brussels; since the item was postage-free, the only airmail fee of “6fr.” was paid (charge effective April 1, 1937: “3fr.” per 5fr.), rare item, very fine