Thanks for the welcome and replies. 
 
It was a frustrating experience trying to be one of these in Morocco - and sadly not for $10.  The opening asking prices were astronomical and several I saw were described as "rare" - despite there being several examples in the shop and probably dozens in the souq. 
 
My gut reaction is that I'm fairly happy with this although it remains an enigma.  I would like to be able to tie some of its history to an era or region. 
 
Peter
		 
		
		
		
		
		
		
		
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