Ter - Centenary of Gur-ta-Gaddi of Shri Guru Granth Sahib Unc double coin Set issued By Hyderabad Mint

Metal Composition

1) 100₹ Coin : 35gms

50% Silver

40% Copper

5% Zinc

5% Nickel

2) 10₹ Coin : 7.71gms

a : outer ring 

92% Copper 

6% aluminium 

2% Nickel

b : Center piece

75% Copper

25% nickel

Best for collectors