Special edition Sachin Tendulkar silver coins, with his face, name and signature embossed on them, will be launched in Mumbai on March 14 in the presence of the Indian cricket legend himself.Valuemart Gold & Jewels and Diamond India would launch 15,921 coins, corresponding to the number of runs that the batting maestro scored in Tests during his glittering 24-year international career.The special edition coins would also have the batting icon's name at the top, 200th Test match-2013 written below, where his face is engraved, and "ST" logo, as per the details in the invite issued for the launch function. The coins, minted in 200gm silver, have been crafted by Switzerland-based precious metal refiner Valcambi SA.