This is a apparently Unique, Dueber, Hunter Case. Unique because it appears to be made from Aluminium! First, the Case Engraving from the Side.
|Below is the Inside of the Dust Cover.|
|Below is the Front Cover, Engraved w/ an Empty Shield. I've mounted a "Menlo Park", HN4L-A, 17 Jewel, Movement in this case because I believe both were manufactured around the same time.|