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Weight

Measures of mass in the Imperial system include the pound (lb) (454 g), which is divided into 16 ounces (oz). 2240 lbs constitute one ton (140:35), i.e. 1.02 tonnes or 1016 kg. 300 Oz. 140:25) is 8.5 kg. A pennyweight (dwt) (193:21) was one-twentieth of 1 Oz. (c. 1.4 g). A hundredweight (cwt, 1973) is equal to 112 lbs, i.e. c. 50.8 kg.

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