1911, "ZILLETEN (ECHELLE)" violet cds. on envelope bearing 1 pia. blue (Isfila and Coles-Walker unrecorded), via Tripoli with transit mark on reverse, adressed to Sfax / Tunis with label "INCONNU" and redirected to Tripoli, some border crease and few spots, tiny border flaw, an important and unrecorded rarity for a Libya & Turkey postal history collection! (Image)