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| British Indian units of mass | ||
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A tank is an obsolete unit of mass in India approximately equal to 4.4 g (69 gr). After metrication in the mid-20th century, the unit became obsolete.
In Mumbai (formerly Bombay), the tank equalled 17 1/72 grains (about 1.1 grams), and 72 tanks equalled 30 pice. In the 16th century, the tank was reported to be 20.96 g (323.46 grain).[citation needed]
"Tank". http://www.sizes.com/units/tank.htm. Retrieved 2007-02-19.