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Tripmaster 1930 Iter Avto Device like a wrist watch is loaded with a tiny paper road map that is rolled across the face of watch by adjusting two small black knobs. It used to come with set route maps, such as London to Bournemouth and London to Edinburgh, and the driver winds the knobs to move the map on as their motorbike travels further.

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Tripmaster 1930 Iter Avto

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Tripmaster 1930 Iter Avto ‘The Plus Fours Wristlet Route Indicator’ was designed even earlier than Iter Avto in 1927 by Britain. According to the National Trust in Britain, it was the first navigation device made expressly for motorists.

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Tripmaster 1930 Iter Avto

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Plastic Face Protector (1939) Plastic face protection from snowstorms in Canada

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Superior Inventions

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A Colt 38 with built in Camera (1930) A gun with a camera, camera automatically captured images while pulling trigger.

Superior Inventions

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A Gas Proof Pram (1938) A Gas Proof Pram was invented by a resident of Hextable in Kent. Pram was a gas proof and very safe for baby during an air raid.

Superior Inventions

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