1981, Proof Set, PIE-FORT (Piedfort) Coin, International Year of the Child, Silver 100 Rupees, 58.32grams, Bombay Mint, (RB # 90), in immaculate condition with original packing in an acrylic case with outer cover and certificate, the coin is in mirror glaze cameo-like finish, proof, Extremely Rare. Note: "PIEFORT" or "PIEDFORT" are coins struck in a higher weight standard than the regular issue, on a thick planchet. This commemorative issue is the only type issued by the Indian Government Mint so far.