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Tableau général de l'Empire othoman. Tome 3
par M. de Mouradgea d'Ohsson, c.1787
208. JANISSAIRE, en habit d'ordonnance.
Source : Bibliothèque nationale de France
Plate 208 shows a Janissary attired in their distinctive uniform wearing the famous ceremonial headdress (keçe) made of felt that fell in a double layer down his back.