Old Duncan DD pickup? Need identification help.

[Fab83]

Hey guys!

New to the forum and it´s my first post.
Got an offer for a Duncan DD pickup, no logo on the back nor the bobbins. Did some research here but i´m not sure if this is a Duncan pickup or not.
So maybe you can have a look on this picture and tell me if i can buy it or not!

http://imageshack.us/a/img199/6112/00sddd.jpg

Thanks in advance!

Fab