Join Date: Apr 2010
Assuming that the initials are PM, in the "Dizionario delle armi", edited by Mondadori, register two entries for PM:
P. M. "Acronym of Munich Peter"
P. M. "acronym of Meitinger Paul"
and going to the entrances:
Munich, Peter and Fiedrich German gunsmiths, of Soingen perhaps relatives both, who worked in the beginning / half of the six hundred, also Denmark. They were very dear.
Meitinger Paul. Armorer who worked in Innbrusch, in the second half of the Cinquecientos