Butt stamp question...

[markhepler]

Hi,

My Luger has a safety in the usual place--it's hard to see from first photos, but appears in this attachment.

Underneath the butt stamp, almost obliterated by filing, are the numbers "7 109 (space between 7 and 1--the 7 looks like a slash in the photo).

Three small eagles are stamped in a row on the non-safety side of the slide, near the barrel; there are no other notable marks.

The serial number is 4828a--all major parts have a corresponding 28 stamp.

Also, pardon my ignorance, but what do the eagles on the side and the fancy DMW scroll on the top signify?

Hope you can shed light on the gun; thanks,

Mark