Answer: Option [C]Sher Shah is credited for introducing for the first time the following measures except currency system. Sher Shah issued a coin of silver which was termed the Rupiya. This weighed 178 grains and was the precursor of the modern rupee. It remained largely unchanged till the early 20thCentury. Together with the silver Rupiya were issued gold coins called the Mohur weighing 169 grains and copper coins called Dam.