Khaki cotton canvas pouch approximately 13 x 8cm with a sand filled section at one end and a flapped pocket with press stud fastener at the other. Messages could be placed within this pocket and the pouch dropped from an aircraft to troops on the ground. A red cotton streamer helped slow the descent and make it more visible in the air. Printed to one side 'RETURN TO' with a gap to fill in the destination. Excellent, probably unused condition. Stock code M19525.