Melting of coins for their metal value made a silver One Rupee 1939 coin of British India highly rare. Hidden Treasures brings to you the facts and characteristics of this coin which made it extremely valuable item in the numismatics industry.<br><br> Hidden Treasures is a series of mini-documentaries which holds the gems of notaphily, numismatics and philately industry. With the help of the newly established online museum, www.mintageworld.com, this series discloses information about the most expensive and exquisite stamps, coins and notes sold across the world. <br><br> Promoted by the “Ultra” group, mintageworld.com is the first website of its kind in the world, where all the three fields have been brought under one roof.