1840, Victoria Queen, Silver ΒΌ Rupee, Mule?, Continuous Legend, Calcutta Mint, Crescent, 20 berries (10L+10R), Obv. A(a), without curl on cheek, Rev. I, (Unlisted in PR & GK), nice toning, strong features, graded & slabbed by NGC as MS 63, Extremely Rare.
Note: This 1840 quarter rupee coin was struck using obverse dies from the Madras mint and reverse dies from the Calcutta mint. This unique occurrence has been discovered for the first time.