A nice old keris, indeed in a Solo dress. This kind of shape (dapur) with 13 luk was very popular with Maduranese soldiers in service of Solonese army. 
So many times we can see a blade made in Madura.  The name of the dapur is Parungsari or Sangelat, which depends on a little difference ; If it has 1 or Djalu memet: 1= Parungsari or 2= Sangkelat 
 
sorry cannot translate djalu memet, but i will try make it clear with a photo 
example a parungsari:
		 
		
		
		
		
		
		
		
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