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					Originally Posted by asomotif
					
				 
				...PS. a friend suggested that maybe it is not a complete date , but that the 1771 is infact some islamic writting    
 
Some comments on that ?  
			
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 I doubt it's Islamic writing. If it is, then it's 1661. But then again, the number 7 does not look like islamic numeral. I guess we'll never know.