Certainly written evidence suggests a common design and description of such scrotum like powder flasks across the Islamic sphere where Moroccan and Persian examples can be compared favourably. I place a few below to suggest originality in the form from camels scrotums. The item with Islamic/Persian script is particularly fine and can be seen at
http://armsandantiques.com/19th-c-pe...er-flask-mf452 in great detail.