Whoa, whoa! Unless the lighting is all weird, that looks a lot lighter than a regular blue DMG. You might be sitting on a rare one. IF it had this color when sold originally, say if it was died/painted especially as a part of some sort of campaign, if might be worth more than 35 euros. Judging from the red buttons, it's probably a modded grey DMG. Does it consistently have the same color inside the battery compartment?
Could you do me a favor and check these things please?
The serial number. (1)
Motherboard (3) and LCD board (4) revision. (Look into the holes.)
Does it have a CE mark imprinted into the electrical safety sign region? A TÜV mark? Made in China or Japan? (2)
Guide: