The product is a rare 1840 Pemba Island copper coin with the British East India Company's Queen Victoria stamp. This historical piece of currency was minted in India with a silver fineness of 0.917. It features a unique counterstamping that adds to its collectible value, making it a valuable addition to any numismatic collection focused on British India or Victorian-era coins.  Stamped Pemba Island, part of Zanzibar.  A rare find.