JCW: THL-B-1.1* Rarity: ***** Year: 1930-31 City: BANGKOK Color: Black Size: 53x17 mm Remarks: in fact “au delà” cachets. Mail was sent by boat to Karachi resp. Marseille and from there by air to London, which effected in a couple of days time-gain.
JCW: THL-B-2.1* Rarity: ****** Year: 1928-29 City: BANGKOK Color: Black Size: 63x15 mm Remarks: in fact “au delà” cachets. Mail was sent by boat to Karachi resp. Marseille and from there by air to London, which effected in a couple of days time-gain.
JCW: THL-V-1.1* Rarity: ***** Year: 1932 City: BANGKOK Color: Violet Size: 63x21 mm Remarks: handstamp for jusqu’a purposes to be flown as far as Amsterdam by KLM.