2009 commemorative £2 coin to mark the 200th anniversary of the birth of Charles Darwin.

Edge: ON THE ORIGIN OF SPECIES 1859
Mintage: 3,903,000

Size: 28.4mm.
Width: 2.5mm.
Metal composition of gold coloured part: 76% copper, 4% nickel, 20% zinc. Referred to as nickel-brass.
Metal composition of silver coloured part: 75% copper, 25% nickel. Referred to as cupro-nickel or copper-nickel.
Weight: 12 grammes.