OHMS Economy Label, used by the Government of Burma in exile

When Japanese invaded Burma in 1942, the Government of Burma moved to Simla, India.  Some functions of administrative were operated and headquarter was set up.  The following cover was sent by Chief Secretary's Office of the Government of Burma, and addressed to Bajpur, India.  

OHMS Cover from the Government of Burma, Chief Secretary's Office.

26 Mar 1943

The OHMS economy label was pasted on the used India postal stationery envelope.  The postage of one and a half Anna paid for first tola inland letter rate.  

Economy labels are sometimes used to solve the stationery shortage problem.  This is a gummed piece of paper, with the and office address on it.  This instructions were to put the response in the original envelope, cross out or cover the original address,  fasten the envelope using the economy label, and put it in the mail. The recipient can open it by cutting the label slip.