Forces Censor Mark: The bisymmetric concave hexagonal R.A.F. CENSOR 49 rubber stamp in violet is Garrard & Colley/FPHS type R17 censor mark used by 9 Sector Operations Room RAF in Sittwe (20.1528°N 92.8677°E), Myanmar in 1945.
Postmark: The RAFPOST 221 postmark dt. Jun 28,1945 is Proud type D1/Smith/Garrard type 30 datestamp of RAF PO 221, used in Sittwe where it was located from Jan 20,1945 to Aug 5,1945, serving 67 Squadron RAF (later designated as 903 Wing RAF).
RAF PO 221 functioned under 6 Base Postal Unit RAFPOST (opened on Sep 3,1943 in Chattagram) from Apr 5,1945 to Jun 10,1945 and thereafter independently till Aug 5,1945.
6 BPU moved from Chattagram to Sittwe on Apr 2,1945 and started functioning there 3 days later.
When tents of 6 BPU were burnt in fire on Apr 8,1945, its work was managed by RAF PO 221 till Apr 16 when 6 BPU started functioning again.
Civilian Censor Marks: 1. The Morenweiser type 5A DHA/391 violet rubber stamp censor mark of Kolkata Censor Station (opened Sep 3,1939) with station code A, which is recorded with chop number range 1–451, used in violet ink from Mar 1942 to Nov 1945.
2. The octagonal Morenweiser type 6 PASSED DHZ/3 violet steel stamp censor mark is of Kolkata (Inland) Censor Station (opened Mar 1943), which is recorded used in Jan–Jul 1945.
Kolkata (Inland) Censor Station was opened in Mar 1943 following the imposition of Special Inland Operational Security Censorship in Asom and East Bangla, as the Censor Station HQ of the newly established 7 Sub-CSs in the effected area, viz., Dimapur, Guwahati, Shilchar and Chandpur, Chattagram, Dhaka and Maymansinha and later Tinchhukiya Sub CS in Nov 1944.
From Apr 1944, it was entrusted with the additional work of censorship of inland mail originating at or passing thru Kolkata.
Resealing Label: The Morenweiser type 13A P.C.90 OPENED BY EXAMINER resealing label of Kolkata (Inland) CS where it, among other CSs, is recorded used only in Jun–Jul 1945.
Postal Stationery: It is Br. India 1944 Army Form W.2078 Green/Honor Envelope (Daynes INH15d) printed in black on toned paper.
The destination of the cover is Phaphamau (25.5341°N 81.8538°E), now in Prayagraj district of Uttar Pradesh state.