Salam, 
 
Pak Ganja, I have never come across any weapon called "cis", pls elaborate. From the visual alone, I suspect that the "cis" is equivalent to tempius or pedang sodok. The dressing (hilt & scabbard) strongly resembles Chinese jian? 
It was said that during Singhasari & Majapahit times, there were a lot of mingling between the Chinese / Monggols & the Javanese.
		 
		
		
		
		
		
		
		
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