Another post prompted me to ask the same question about approx worth. It has a bit of a story, ca 10 years back. It belonged to a WW2 Vet who left it to a friend collector. Delivering a little job to him I asked if he had a Luger he would sell. Brought this Luger heavily crusted with dried grease, dust, etc. I couldn't see a date on it & owner didn't know what to ask for it. LGS had several lugers for sale & I volunteered to get info from LGS. I took notes and described to LGS who said $400. So I bought it for $400. Took it to the shop where they cleaned it up, found 1920 date, 50% color on trigger, etc, & marking PwB. Later translated to mean Bavarian police. All numbers match including both mags. One mag number is of a different font, apparently not original. Holster dated 1941.
Got home and was met with message to call seller. He says "I forgot to give you the scabbard and extra magazine.