Thailand. (British Forces in Thailand). 1963. Envelope written by 'Capt Gillberry, c/o G.P.O. Singapore' addressed to London bearing Great Britain 'Wilding' SG 610, 1/2d orange and SG 614, 2 1/2d carmine tied by 'Field Post Office/ 1061' double ring dated '22nd June 63'.
Exercise "Dhanarajata" was a 'SEATO' military exercise held in Ubon and Bangkok in May - June 1963. The British Forces Post Office (F.PO. 1061) was open in Bangkok '22nd June 1963.