Is this a side by side or an over and under? Francisco Sarriugarte is prominently mentioned in Terry Wieland's book "Spanish Best"; seems to have been one of the best of the best.
I'd strongly suggest you remove the barrels and compare the stampings, proof marks and manufacturing stamps to those found at www.spanishguns.com . It's possible you have found something well worth having. Good luck.
'Lonzo
I'd strongly suggest you remove the barrels and compare the stampings, proof marks and manufacturing stamps to those found at www.spanishguns.com . It's possible you have found something well worth having. Good luck.
'Lonzo