Burma
Posted Under Certificate

Aerogramme (Wiegand no. 5) sent from RANGOON SORTING (cds 5 NOV 55) Attendorn, Germany. H/s "Posted Under Certificate".

In Burma, any unregistered postal items could be posted under certificate of posting, which worked as a proof of posting. Usually, the sender prepared a list of the items to be mailed under the certificate and affixed stamps to pay for the certificate. The post office clerk, then, confirmed the acceptance of the items by cancelling the stamps paying the certificate's fee with a date stamp.

The handstamp shown on the aerogramme above was not applied by the post office clerk but by the sender.



References
Wiegand refers to Wiegand, Katalog der Aerogramme von Asien, 2000