Dreyse 1907, 7.65mm, This is marked P.P.B.IV. No 599=Polizei-Prasidium-Berlin, which has been lined out. There is also a K.B.1413 on the front grip strap. The magazine matches the gun number on the front grip strap. This has about 97% blue and the bore is excellent. This full rig includes a General Purpose pattern, black leather holster, maker marked Robert Larsen Berlin SW68 -Kriminal Polizei Berlin, and has a Police Eagle proof and is dated 1937 and an extra magazine.