I have already shown one of my Nimchas: the blade is marked Nueva Granada, ie. what is currently Colombia.
http://www.vikingsword.com/vb/showth...hlight=granada
Spain had possessions in North Africa, and it is not out of court that some blades manufactured in the American colonies could have found their way to the North African ones. By the same token, N. African sabers could have been brought to the New World to start a new fashion. It was " all in the family".