Hi Norman,
I looked through my copy of Abel Domenech's "Dagas de Plata", which has the most comprehensive listing of brands without finding a reference. I find this a little surprising and think that it will be worth your while to write to Abel, as the blade may be rare.
In any event I do not think that your knife is quite as old as you suggest, but it appears to be old enough to be a classic.
I did a quick search on Google and came up with this:
http://www.archive.org/stream/cu3192...70627_djvu.txt
It would appear that they were, amongst other things, surgical instrument manufacturers. Probably in the right ball-park for knife blades.
Cheers
Chris