India, British India, 1820-1831 AD., Bengal Presidency, in the name of Shah Alam II, Calcutta(?) mint, 1 Rupee, KM 70. explanation with overlay

Obverse (left depiction): Sikka zad bar haft kishwar saya fazl Ilah Hami ud-din Muhammad, Shah Alam, Badshah , ("Defender of the Muhammadan Faith, Reflection of Divine Excellence, the Emperor Shah Alam has stuck this coin to be current throughout the seven climes")
Green (most a horizontal line): sikka
Dark red: zad (struck)
Blue: bar (in)
Yellow: haft (seven)
Pink: kishwar (climes)
White: saya (shadow of)
Bright green: fazl (favour of)
Red: Ilah (God)
Gold: Hami ud-din (defender of Faith)
Green: Muhammad
Bright blue: Shah
Brown: Alam
Bright pink: badshah (emperor)

Reverse (right depiction), from bottom right to top left: Zarb Farrukhabad sanat 45 julus maimanat manus , ("Stuck at Farukhabad in the 45th year of his prosperous reign")
Bright blue: Zarb (“struck at“)
Orange: Farrukhabad (mint name)
Yellow baseline: sanah (“regnal year“)
Yellow: ۴٥ (“27“)
purple: julus
red: maimanat
brown: manus