TY  - GEN
ED  - Government of Bengal,
TI  - Instruction regarding the use of their paper envelopes in correspondence intended for dispatch by air mail. 
PY  - 1939///
KW  - paper
KW  - envelope
N1  - সচিবালয় রেকর্ডরুম সংগ্রহ (প্রথম পর্যায়) 


ER  -