Image:Travancore 1940 energy conservation.jpg
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An early attempt at energy conservation: This 1940 photo depicts the dewan (chief minister) of Travancore princely state in India riding a bus fuelled by charcoal gas. It was expected that this would considerably reduce the consumption of petrol. Source: [1]
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- (del) (cur) 00:44, 23 July 2006 . . ImpuMozhi (Talk | contribs) . . 268×350 (24,576 bytes) (An early attempt at energy conservation: This 1940 photo depicts the dewan (chief minister) of Travancore princely state in India riding a bus fuelled by charcoal gas. It was expected that this would considerably reduce the consumption of petr)
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