The Italian Ordnance Board generated this complex Pistol Called the Model 1910 commonly refered to as the Glisenti Model 1910. Even though I have serial Number 77 with a date of manufacture of 1909.. The calibre is 9mm Glisenti, which has the same case legnth as that of a 9mm Luger, except it is loaded lighter.. Many collectors do not know that there is a combination tool under the left grip.. The wooden handle pistol was picked up in North Africa, and the pistol in the green flap holster was picked up in Germany by a local GI, I dont know about the one in the shoulder holster..enjoy BILL