Picked this up years ago in Bremerhaven Germany and was told that it was from a German U boat ? I was told that utensils had to be in aluminum so that they would not spark? size approx. 5"H X5"W.
The bottom is marked with a maker "Ritter" and that its pure aluminum also a "HR39" - no other marks i.e. Marine etc.
Possibly just a story or???Thanks for any help/
Horst

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