1915, fieldpost card with command letter cancel "command of the German Turkish pilot HERKULESBAD" with date stamp Herkulesfürdo 25.7.15 to Budapest, much text and signature several airman, sender "Erich benzine, German Turkish auxiliary airman, department Herkulesbad, south Hungaria", large red hungarian censorship single circle postmark from Temesvar on face, extremely rare, by our knowledge no other document with this letter cancel registered