Silver? Maybe. 
 More likely for that region would be the so-called white brass, i.e. Brass with high percentage of tin. If you are interested in knowing precisely, take it to a jeweler. 
Agree on wootz: no 
 
Ivory is a proverbial cherry on top: mostly it was just bone or horn. Later on it was Bakelite, with its saturated deep orange-ish color. 
 
Good catch, enjoy it.
		 
		
		
		
		
		
		
		
	 |