Air Ministry Militaria
Web site: https://www.airministrymilitaria.com/
WW2 carrier pigeon message form.
The transparent form can be placed over a map allowing the sender to give a part map tracing, so ensuring accurate map co-ordinates.
Also, the form has enough room to allow an appropriate message to be written explaining the map.
The form is made of a thin type of 'tracing' paper.
It can be folded up into a very small size allowing it to fit neatly inside the pigeon message capsule (see last photo, the capsule is not for sale).
The size = 230 x 230mm.
New 'old stock' in great condition with minor storage blemish.