The original "dry" Zinc Carbon cell invented by Hellsen? Sweden & copy patented in USA by a UK Chemist.
The American Novelty company bought that and sold electric torches to NYPD, but no depolariser, so quickly dimmed. Flashlight.
They became NCC / Ever Ready.
Original Zinc cells (1900) were wet and open top!. Telegraph use from 1831.
Ray McCarthy
npub10e…0rjez
2026-05-17 15:25:17 UTC
in reply to nevent1q…5r2n
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npub10ev0w9urem7dvdmxs990yv3cp60e5zw8ypqzh3ez6j9c67um9fesr0rjezSeen on
wss://relay.momostr.pinkPublished at
2026-05-17 15:25:17 UTCEvent JSON
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