In my collection I have one particular pistol that I would love to have more information about. It is a 6.35mm(25ACP) Ortgies Vest Pocket Pistol serial #106xxx. I know that these pistols were produced between 1922 and 1924. Does anyone know of the existence of production dates by serial number for these? I would love to get a little closer than a 24 month span. This gun is a fifth-style address, one of approximately 156,000 made between these years. This is the most common style of these neat little guns. And before anyone asks, I do know of the dangers of the safety on these guns. Thank You!