Salaams All ~ Note to Library.
From
http://www.artsales.com/ARTistory/Xavier/Hasekura.html
I quote"Having just crossed the Pacific Ocean Hasekura Tsunenaga had an audience with the Mexican viceroy in 1614. After traversing Mexico between Acapulco and Vera cruz and the Atlantic Ocean in 1615 he sailed for Spain where he met with the Spanish monarch Philip III (1598-1621). While in Spain he was baptized a Christian. The ceremony was conducted by the Archbishop of Toledo and the Duke of Lerma was designated as Hasekura's Godfather. Hasekura'a delegation stayed in Spain for eight months before traveling on to Italy".Unquote.
Thus since got the weapons presented there it would seem plausible that there could have been some Spanish influence in the case of a weapon having apparently a mixed provenance?
Regards,
Ibrahiim al Balooshi.