hi louis, 
jes i would like say choij hamon. i must say your sword to say more. it is so difficult so say more without an direct view at the blade. yes i think it is an bizen sword ore maybe kaga. i think also that is made around 1700. the shape is in these pattern. the mounting shows  also so. late edo time ( my opinion) 
sorry that i canīt say more. 
stefan
		 
		
		
		
		
		
		
		
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