Hey Jack!!
I'm curious as to why that soldier was dumping the propellant into a helmet?
Thanks again, always a pleasure to see you on here!!

all the best

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This is a pair of Dutch resistance crystal radios, built into a small metal can, and a matchbox. The image is from a postcard bought at a Dutch Resistance Museum in Amsterdam. The matchbox is marked in Swedish, but Swedish matches were sold in Holland for many years..
Scott