Stampless printed 'Consulat de France a Valparaiso' airmail envelope sent by the diplomatic pouch with large straight line 'VALISE' cachet in black and manuscript '6' notation alongside. Put into the post in France but treated as unpaid and taxed on arrival with added French 1946 1f blue and 5f pink 'Postage Due' issue tied on arrival by AULNAY-SOUS-BOIS cds's. Unusual.