Republic India, Steel 1 Rupee, 2004, &nbsp;massive error, &nbsp;deep impressions of over-strucking of commemorative (India Post 2004) and definitive (normal issue with crops) dies on both obverse and reverse sides, could be called &nbsp;as &quot;two in one&quot;,&nbsp; 5.1g, 25.25mm, about very fine, Collector&#39;s opportunity to grab the rarest error.

Error Copper Nickel One Rupee Coin of Calcutta Mint.

Error Dual Year of Mule and Double Hammered.

Rare & UNC Multiple strikes & uniface Error Stainless ...

Uniface Strike Error Copper Nickel Two Rupees Coin of H ...

Brockage Error Copper Nickel Two Rupees Coin of Republi ...

Error One Rupee Coin of No YEAR of Both Side Double Ha ...

Scarce Error Silver Quarter Rupee Coin of King George V ...

Error Two Rupee Coin of Both Side Double and Rotated ...

Error Steel One Rupee Coin of Double Error of lakhi ...

Silver Half Rupee of Victoria Empress of Bombay Mint of ...

Error Copper One Quarter Anna Coin of King Edward VII.

Error Five Paise Coin of 1959.