Navajas of the Galleons

[Dmitry]

My money is on the razors, not knives. Iron discipline was required on board ships, especially the treasure ships and naval vessels. Sailors did not carry knives as a matter of fact, all the repairs of the tackle and sails were done by the sail-makers and their crews, who had their own tools.
As we can see from numerous period paintings, most people were clean-shaven, even the lower classes [and sailors were the lowest of the low], to combat lice and infections. Author writes about scars on faces of some of the crew members. It could have been pox, acne, who knows.
The lone knife that he pictures with a plastic mould done after the original blade looks like a fruit knife. In regard to Newman's pictures of the folding knives, many of them have been identified as provincial Italian shabby jobs, not 18th c., but mid-19th or even early 20th c.
All in all I find the topic interesting, but the supplied article not convincing in the least. I can be wrong, of course.
Just my $ .02