Description in the catalogue "Caps from Central Asia and Persia", fig. 126 Dervish cap, Tehran, Bastian collecting trip 1878/80 Material of the cap: white felt Material of the decoration: black wool The basic material for this cap is white wool, which produces the most highly prized felt. The black wool used for the embroidery is two-ply worsted yarn with an S twist. The inscriptions are invocations and are addressed to Ali and Mohammed, repeated once in the border zone; no name is mentioned in the upper fields "O Fulfiller of Needs".