I have the exact same gun paid 250nz for her the stock wasnt as tidy as yours and i have refinished her definely not spainish best but good shooter i use mine when im in the rough stuff ie want to use a side by side but dont want to risk using a safe queen ,there are a few of these in new zealand and you see the MUGICA boxlocks all the time they were popular in the 60s and 70s and most of them are still working fine even though they were used as duck guns and not looked after very well i know of one thats never been cleaned looks horrible but still goes bang every time ,have fun
