This is my mauser model 1914 and was particular gun was manufactured between 1925/28
These guns were made from 1914 until 1934. A change to the shape of the grip frame resulted in the .32 ACP Model 1934, and the design was gradually replaced by the double-action Mauser HSc. The Model 1914 was a popular commercial gun in its day and was used through both world wars by various German police agencies and military units.