6Armstrong, E.C.R. "The Great Clare Find of 1854." The Journal of the Royal Society of Antiquaries of Ireland Sixth 7.1 (1917): 21.
£30 in 1854 would be the equivalent of £2,323 in 2015 (€3,219). £400 in 1854 would be the equivalent of £31,004 in 2015 (€42,920).