Help Identifying Maker of German Glass Hanging Lamp  

Hi, I'm new to the forum, but was wondering if anyone could please help me to identify a maker for a German glass hanging lamp which I've recently acquired.
It's suspended by three thin metal chains which are attached to a chromed bracket of sorts, fixed to the upper part of the glass sphere(in all fairness, it isn't entirely round, rather a bulb shape). It measures approx. 35cms across.

I apologize in advance for the poor quality of the photos and thank you for any help you may be able to provide!
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