Thanks for your comments Jean and David. 
 
Yes, North Coast Jawa/Tuban keris were often pretty "super-size", and Balinese keris, especially old ones, were frequently the size of Javanese keris, or even smaller. 
 
The photo I've posted is of a display in the Den Pasar Museum. You can see a couple of Bali keris of the size that we think of when we think of Bali keris, and another very much smaller keris. 
 
The smallest Bali keris I have is 17.5" (445mm.) overall, and with an 8.4" (212mm.) blade. 5 luk., it is definitely Balinese and definitely old, I estimate probably pre-1800. 
 
I do have a number of other Balinese keris that are about the size of Javanese keris, and I have a few big Tuban keris. 
 
I used to have two Balinese keris that were only about 8" to 10" overall. 
 
So, I think we've established that there can be wide variation in keris size. 
 
But does anybody have any suggestions as to why this variation in size may have occurred?
		 
		
		
		
			
		
		
		
		
		
		
		
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