1916, letter of a soldiers at the military mission with blue bilingual single circle postmark \"army postal service\" 12. OCT. 1916 as well red violet letter cancel \"rod of the Goltz - special mission P. \" to Osnabrueck, as sender \"sergeant. German group of Iraq P . \", these special mission \"P\" should militaries and supplies to Persia bring, letter vertical trace of crease, forwarding from Osnabrueck 17.11.16 to Gdansk Langfuhr