INDIES: 1906 usage of '15 C/NED.-INDIE' Envelope to "Tientsin/China" uprated with 1c olive, 3c orange x3 & 10c slate, 'BANDJERMASIN' squared-circle & registration label, backstamps 'N.I.AGENT SINGAPORE' squared-circle, Hong Kong & Shanghai transits & 'TIENTSIN' arrival. [Bandjermasin is in the south of Kailmantan & was the capital of Dutch Borneo]
SURINAME: 1931 Dornier X Flying Boat Overprints 10c to 1gld50c SG 218-224, lightly mounted mint, and a set tied to cover to 'CURACAO' (b/s) by the 43mm 'EXTRA LUCHTPOST VERZERDING/...' cachet & the massive PanAm 'FROM SURINAME/...' cachet in violet on the reverse, Cat £775+.
(7 + cover)