MOUSER LUGER 1939 "42" with special seal

[flyboy800]

I'm a new member and owner of a Mouser Luger 1939 "42" stamped with what I believe is a lower case "v" below the serial number. No big deal, right? Value between $2000 and $4000 What I can't find info on, is the non-standard grip that's on it. The wood grip is smooth, not hexed and has a round emblem on the left grip. It has a swastika on it with a small house and what I believe are the initials of the solder. I believe this gun was given special as an award for valor. Is this true and how much does it increase its value? Anyone please help, ask your friends. Thank you for your time.

Update: What a great web site for Luger info. Great members. Thank you. Here is the info on the pin:

DSB or Badge of the German Homeowners Association (Deutsches Siedlerbundabzeichen). Founded in 1933 and still in existance today. It's estimated that only 32,000 DSB badges were produced prior to 1945 so quite a scarce badge.