Salaams all ~
Lazarino Kominazzo was a great 17thC. master gun maker... see
http://transantique.com/articles/view/id/365/ for a short rendition by Catoire de Bionkur ..
All quite puzzling since they both appear to be the same person and when you realize that between 1600 and 1635 it was quite common for signatures to be forged. In fact the master gun making house of Cominazzo hardly did any complete weapons but focused on gun barrels thus it is hardly surprising that in putting together a weapon from bought in Cominazzo parts that the signature was copied...
Regards,
Ibrahiim al Balooshi.