Attachment 63947
Please can you help me identify this canteen - it was left in Papua New Guinea c1973 so could be ex-military from US, Australia or even UK
It is made of aluminium with a hard black plastic screwtop with an unusual metal centre part (a valve?). The reverse is rounded without the concave indentation. The base is hardly flat but it does stand on end. There are no markings.
Any info gratefully received thanks