The condition is a little rough and with a mismatched side plate it is a shooter worth around $700. The side plate is from an Erfurt and the rest of the gun is from DWM. The marks on the right side are the various proof marks. Curt

 

Year of production is above the chamber: "1915".
Your gun was made by Deutsche Waffen und Munitionfabriken (DWM) for the Germam Imperial Army. The larking on the right side of the receiver are the acceptance proofs, made the military inspectors located at DWM plant at that time (three crowned Gothic letters) plus an Eagle (the firing proof). The full serial number (number plus suffix) is marked under the barrel and in front of the frame. The 8,82 marks indicates the real bore size in milimiters.

The mismatching side plate is a kiss of date for most of collectors, so the previous post is a very good estimative about value.

Welcome to the board.

Douglas.

 

Thanks Douglas & Beachbaker for the solid information. I am looking to purchase this gun & a 1914 Mauser from a friend and wanted to make sure the price I offered was fair for both parties.