Hi Rob:
What a great piece of WW2 history memorabilia. Rob, were there another small box with this box? As usually the igniter systems came in a separate box to the grenades. Did this chap that you received it from have any of the original grenades or igniters? I believe in my attached photo you will see in the center the device to activate these models mentioned. I am quite sure exaulted history guru Mark will be able to identify if this assumption is true. Karman has assured me that Mark will not fail us.
By the way Mark would you please explain to me the physical dynamics of the universe before the big bang/
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