Daniel Attwell Biography See Work ESSAYS / Winter 2010 The Blind Plumber of Tetouan By Eric Calderwood , Photography by Daniel Attwell Mustafa al-Farkhani stops outside the closed gate of the Tijaniyya shrine in Tetouan, Morocco, and holds a finger to his lips. His eyes go dim as he places his ear against the whitewashed limestone wall of the house that abuts the shrine.