Los 11
Karl I 30 heller black green on "Auftragspostanweisung" from Bugojno 13-6-1918 to Sarajevo, fine/very fine (pinhole probably caused by receipt holder) with extensive 2020 Rüdiger Soecknick certificate. An extremely rare postal form. This is the only franked form known! (See Ferchenbauer part IV page 386)
