Agramer overprint on piece with cancellation by the very rare so named \"mute stamp Triest\". Very detailed photo expertize Petry BPP: \"in excellent condition. Island post admission stamps with this cancellation to arise from mailings, which the hospital ship \"Gradisca\" in the January 1945 from member the island occupying troops given to. Cancellations from \"island post admission stamps\" with the so named \"mute stamp Triest\" are rare! \"