I'm confused by this envelope!
Pre-stamped and 'By Air Mail', and pre-addressed to Base Air Post Depot, Karachi, so how would it have been distributed for use by Air Mail within India but outwith Karachi?
Jim
Pre-stamped and 'By Air Mail', and pre-addressed to Base Air Post Depot, Karachi, so how would it have been distributed for use by Air Mail within India but outwith Karachi?
Jim