400 year old barrels with what may contain herring, and a large bathing tub found in the town Skien in Norway.

The ultimate «surströmming»

https://www.nrk.no/vestfoldogtelemark/fant-intakte-tonner-og-badestamp-i-1600-tallet-i-skien-1.17787747

Fant intakte tønner og badestamp i 1600-tallet i Skien

De intakte tønnene har ligget urørt under byens gater i 400 år. For arkeologene er det et mysterium.

NRK
@aslakr Do not open the barrels. I repeat: Do not open the barrels. Fire them into the Sun.
@tml No, there will be a party with bathing and barrels of fermented fish!!
@aslakr @tml I love a good herring but definitely not going near those
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