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Bocca Nova crater of Etna volcano, in Sicily. The crater is at 3270 m altitude, near principal peak.
LMY25T03_D4J4GM

Bocca Nova crater of Etna volcano, in Sicily. The ...

An old engraving showing men working at a hatmaker’s battery used in the production of felt hats. It is from a Victorian mechanical engineering book of the 1880s. The battery is a boiler or kettle con...
LMY25T02_2DANT06

An old engraving showing men working at a hatmaker...