air fieldpost letter with Agramer overprint in blue-black colour, letter cancel FP. number 58391 C, 2. company of the XI. festival. Inf. battalion 999, island Postmark with Upper Circle Segment, good legitimate condition, stamp and letter with transport traces. the stamp blieb without cancellation. the letter was by which LGPA Vienna flown out and the sender was as has been proved to end of the war on Postmark with Upper Circle Segment stations, photo expertize Gustav Mogler BPP (1983)