Need Help Identifying Magazine

[PBking51]

I found this in a box of random bullets and parts. At first I thought it was for a Luger, except it doesnt have a wooden bottom. It does fit 9mm Luger and Parabellum cartridges.

I have posted some pictures which hopefully help me find out what this is.
There are some markings on it in addition to a serial number. I belive the bottom marking is either a Japaneese character or if the magazine is upside down, it may be an eagle with a swatstika. ??

Thanks in advance for all the help.

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