Hello, 
 
Thank you Ken, interesting idea the central hole used as a heater. 
 
Yes the mix copper-brass looks like most of the late 20th teapot-ewer we can find on ebay but I haven't seen pieces ( old or recents)  
with this central toric shape and the central receptacle, 
just fantasy of the craftsman ?
		 
		
		
		
		
		
		
		
	 |