Thailand. (British Forces in Thailand). 1968. Air Mail envelope written from the 'British Embassy, Bangkok' (with oval crest on reverse) addressed to 'S.V.S.O. Dept, H.M. Dockyard, Singapore 27' bearing Great Britain "Wilding" SG 616, 4d ultramarine tied by 'Field Post Office/ 1005' double ring dated '24th June 68' with framed 'Naval Attache/ 24 Jan 1968/ British Embassy/ Bangkok' in violet on face and 'Field Post Office/ 155' arrival '25/1' on reverse of the Singapore Field Post Office.