A Mamluk manual of military practice and horsemanship, Egypt or Syria, 1470.
Art militaire - tir Ö l'arbaleste
f67r Military art - shooting the crossbow
Referenced on p36, The Mamluks - 1250-1517 by David Nicolle:
One of the most detailed late Mamluk furusiyah training manuals is this one by Ibn Akhi Khazam made in 1470. Here a foot soldier uses a large crossbow against a circular target. (Bib. Nat., Ms. Ar. 2824. f.67r, Paris)