Thailand. (Netherlands East Indies). 1926. Siam postal stationery card 3 satang green upgraded with SG 211, 2s chocolate/ yellow and SG 216, 5s deep violet tied by bilingual HAT-YAI date stamp '12th Aug 26', addressed to Banka, Netherlands East Indies, endorsed 'via Singapore' with Soengeiliat arrival '19th Aout 26' on face.
Very nice item of destination mail into Sungailiat a town on Bangka-Belitung Islands.