Sher Shah adopted measures to promote trade and commerce. Which of the following statements is not correct?
1
The system of tri-metalism which came to characterize Mughal coinage was introduced by Sher Shah.
2
He struck fine silver and copper coins of uniform standard in place of the debased coins of mixed metals of earlier times.
3
During his rule, the term rupiya came to be used as the name for a silver coin of a standard weight of 178 grains, which was the precursor of the modern rupee.
4
The earliest evidence of silver coins in India is found during the reign of Sher Shah.