Alumina lid US?

[Jocke]

Hello!
This lid was found by a friend who was diving by Enogai Inlet, New Georgia, Salomon islands.
I know that the USMC was fighting the Japanese at that place so i wonder if anyone recognize this and can tell me what it is?
Best regards Joakim

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Oh and by the way i cant find any marks that is visible on it!

[Tomasz70]

Seems to be a piece of WWII Japanese mess tin - Mess Tins Japanese (EQU 1715)

[Jocke]

Ah!!! Cool! Thank you Tomasz!