Persian Gulf. (Bahrain). 1944. Air Mail envelope addressed to New York bearing Bahrain SG 24, 2a vermilion and SG 47, 4a brown tied by Bahrain roller '22nd Oct 44', endorsed 'To Bombay & thence by Sea Mail' with framed instructional 'Insufficiently Paid For/ Transmission By Air Mail' with India 'Opened by Examiner' label tied by framed 'Crown/ Passed DHB/ 4' hand-stamp with Bombay transit '27th Oct'. Very fine item.