PLACK
Etymology 1
Noun
plack (plural placks)
(obsolete) A coin used in the Netherlands in the 15th and 16th centuries. [15th-17th c.]
(Scotland, Northern England, historical) A coin issued by James III of Scotland; also a 15th-16th century Scottish coin worth four Scots pennies. [from 15th c.]
Etymology 2
Noun
plack
Misspelling of plaque.
Source: Wiktionary
Plack, n. Etym: [F. plaque a plate of metal. Cf. Plaque.]
Definition: A small copper coin formerly current in Scotland, worth less
than a cent.
With not a plack in the pocket of the poet. Prof. Wilson.
Source: Webster’s Unabridged Dictionary 1913 Edition