Tracking the actual maker of a Spanish (or Italian) firearm is like trying to figure out which guy in which hut in Pakistan made a particular AK-47. They have similar cottage industries. Generally such weapons are known by the region that they were made in.
But, please do post pictures. Someone will have a pretty good idea for you.
In life, strive to take the high road....It offers a better field of fire.
"Robo is right" Fuzzball