Folio from The book of knowledge of ingenious mechanical devices (1354 copy)

Al-Jazari
Public domain
Wikimedia Commons
Detached folio from a dispersed copy of Kitab fi ma’arifat al-hiyal al-handisaya (The book of knowledge of ingenious mechanical devices) “Automata” by al-Jazari; text: Arabic in black naskhi script; recto: Part of a water-clock, with a man seated
Contrary to some descriptions, this is not Saladin, but a random clock operator in a Medieval manuscript.