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this post was submitted on 15 Nov 2023
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HistoryPorn
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Relive the Past in Jaw-Dropping Detail!
HistoryPorn is for photographs (or, if it can be found, film) of the past, recent or distant! Give us a little snapshot of history!
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Pictures of old artifacts and museum pieces should go to History Artifacts
Illustrations and paintings should go to History Drawings
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It's a spark arrester
https://en.wikipedia.org/wiki/Spark_arrestor
A spark arrester (sometimes spark arrestor) is any devices which prevents the emission of flammable debris from combustion sources, such as internal combustion engines, fireplaces, and wood burning stoves.
Spark arresters play a critical role in the prevention of wildland fire and ignition of explosive atmospheres. Consequently, their use is required by law in many jurisdictions worldwide.
Thanks