Sixpence (Irish coin)

The sixpence (6d, Irish:reul) coin was a subdivision of the pre-decimal Irish pound, worth ⁄₄₀ of a pound or ⁄₂ of a shilling. The Irish name (reul) is derived from the Spanish real.

The coin was originally struck in nickel, like the threepence coin, and was very well wearing. The metal was changed to cupronickel in 1942 as nickel increased in value; this coin, which consisted of 75% copper and 25% nickel, was not as well-wearing. The coin measured 0.825 inches (21.0 mm) in diameter and a weighed 4.53593 grams.