Sorry, I should have attributed condition (C) to "Juan J. Perez at swordforum.com . This is an exact quote:
"This sort of swords differs mainly from the peninsular civilian cup-hilts not only for their cruder manufacture and broader blades, but in the absence of the arms of the hilt that hold the cup in the original form of this sword.
However, this is not only a feature of swords from the Spanish colonies in America, but from Portuguese ones, and even from Portugal mainland itself, where this sort of cup-hilt was made regulation for cavalry units. This is always an option that should not be discarded."
I hesitate to say anything about Portugal
So Jim, to the list, should I add:
(D) They seldom have 'guardopolvo' (ostensibly = dust guard)