The shape and dimensions of this axe suggest it belongs to a group called beheading, decapitation or executioner's axes; they are usually associated with England. 
 
I strongly doubt though that most of them are genuine objects, including this one. 
 
Attached at bottom is a sample in the Tower of London. 
 
 
Best, 
Michael
		 
		
		
		
			
		
		
		
		
		
		
		
	 |