Hi Chris,
It is nice to "talk" with you again. You are right, I forgot Philip V was enthroned in 1700.
My apologies.
I have some doubts about the work of Forton. The locking mechanism "de muelle" (spring loaded) is present since the early "Spanish" navajas, but dating the specific carraca mechanism to so early date gives me some of these doubts. The other, more important point about Forton: navajas were presumably known and used in this area since the Roman times. The original navaja from Albacete is attributed to the muslim culture in its stytilistic features. Albacete was founded by the muslim rulers (the city of Al-Basit), and was famous for its muslim knifemakers since that time.
The Spanish people has been systematically denying and hiding their muslim and jewish heritage since the time of the catholic kings, and moreover since the Franco's dictadorship, but for some architectural and decorative contributions. I believe Forton is no exception. Do you believe that the production of navajas was forgotten completely after the fall of the Roman Empire, and suddenly, after the creation of the Spanish state in the 16th Century, they began producing navajas? and less those navajas from Albacete which does not look "Spanish" at all, but moorish? I know, there are not historic items connecting the Spanish navajas with their ancestors from the muslim rule. But you also cannot find historic muslim cimitarras and alfanjes from that time, in spite that they are abundantly mentioned in the sources as moorish weapons. The few ones I have seen as such are in fact Renacentist Venetian stortas!
I am sorry if this comment on Forton statements became a disgression, but I think it is relevant to a certain point to contextualize the possible bias of this author.
Regards