India, British India, 1840 AD., Victoria, Calcutta mint, 1 Rupee, KM 458.2.

British India, Victoria, East India Company, engraver: William Wyon (obverse), Calcutta mint, dated frozen date 1840 AD., struck 1850-58(?),
1 Rupee (ø 30,5 mm / 11,58 g), 0.917 silver, 11,66 g. theor. mint weight, actual mint weight 11,64 - 11,72 g., mintage 398.554.000 , axes medal alignment ↑↑ (0°), reeded edge,
Obv.: VICTORIA QUEEN / W.W. , divided legend, her young head facing left, engraver´s initials raised on truncation.
Rev.: EAST INDIA COMPANY // ONE / RUPEE / ... // 1840 , value and denomination in English and Persian within laurel wreath (containing 28 berries in total, 13 berries left, 15 berries right), date below.
KM 458.2 ; Pridmore 56 or 57 . further details on http://baldwin.co.uk/coins-of-india/VictoriaDivided/CatVicDivided_Rupee1.htm

Year / Mintage / Details
1840 398.554.000 KM#458.1 small diamonds
1840 KM#458.2 large diamonds, 28 berries
1840 312,598,000 KM#458.3 27 berries
1840 KM#458.10 25 berries
1840 KM#458.3 27 berries; Proof
1840 B 55,049,000 KM#458.4 W.W.B raised, small B
1840 B KM#458.5 W.W. B raised, large B
1840 B KM#458.6 W.W.B raised, small letters
1840 S KM#458.7 W.W.S raised