Note 252 — Chapter VI · THE TRIBAL SYSTEM (IN WALES).
Reading edition
Id. p 91, s. 15. In Leges Wallice, p. 825, 'score pence' or 'score of silver' is translated 'uncia argenti;' ∴ 3 uncie agri should equal a 'trev.' See Liber Landavensis, pp. 70 and 317.