Hello Leif, 
 
I don't think this blade has been shortened noticeably: the base looks ok and either a longer base or a longer tip would preclude putting the blade into any traditional scabbard. 
 
As Detlef mentioned, these come in many different shapes and sizes; especially the smaller blades can vary quite a bit! Usually the scabbards approximate blade length though. 
 
Any hints that the silver of the hilt is different from that of the scabbard and cross-piece? If so, it may have got refitted at some point to make it look like a pedang tusuk of regular size. Of course, this might have been the intention from the very start as well... 
 
Regards, 
Kai
		 
		
		
		
		
		
		
		
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