Jim, that is a known Mexican army cutlass model 1870ish 
 
'Blade is marked “A.C. Mexico” for A. Colubuzier, a supplier of military items to the army. The reverse is marked “R.M.” with liberty cap, which stands for “Republica Mexico” '  
 
There is an earlier rendition with a rather distinctive scabbard. 
 
Photo  (and text) from Collectors Firearms. 
 
I don't recall any of them referenced as Espada Ancha or bowies. 
 
Cheers 
GC
		 
		
		
		
			
		
		
		
		
		
		
		
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