Sorry didn't mean to break the rules.  Didn't mean the original posting but the later example. I don't have a good knowledge of metals but trying to attach/adhere  two different metals is tough. 
A flimsy piece of metal won't stick to the steel blade. 
My first thought was later functionality.  
Appears there's something more. 
Perhaps it is just decoration, but I 'm somewhat leery of that. 
Talismanic? 
 
This is a great posting, in the sense of, restoration vs. preserving. 
I don't think the hilt represents the original sword & on the other hand, changing the wear, removes history/use.  
 
It is easy to see that many of these swords are being "updated". I'm guilty of repairing/replacing. Difference between nickel & silver is only $10/less in most cases of repairs. The original sword, in this posting deserves better dress & on the other hand, it should be preserved. Don't know right answer.
		 
		
		
		
		
		
		
		
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