This 1964 India 50 Paise coin from Calcutta Mint commemorates the death of Jawaharlal Nehru, a prominent leader in the Indian Republic. The coin features a portrait of Nehru and the words "Republic of India" on the obverse side, while the reverse side displays the denomination and historical period. This coin is a great addition to any collection of world coins and a valuable piece of Indian history. It has not been certified, but its authenticity can be verified by its unique characteristics.