400 rocket stamps were prepared for the Parcel Despatch on 29 June 1935. 160 were used on covers and 240 remained unused. This example has been autographed by Stephen Smith on the back and also has tiny neat initials JMC which is the authenticating mark of the great Jal Cooper who was a friend of Smith.
I am selling other rocket mail stamps and will combine postage.
Postage is 65p to UK addresses and £1.17 to the rest of the world, strictly aththe buyer's risk for standard services. I am happy to use secure services such as special delivery and tracked air mail at cost, and will only send to India by tracked air mail which costs £6.