Sizes of type.
See Minnikin, Brilliant, Gem, Diamond, Pearl, Ruby, Nonpareil, Minion, Brevier, Bourgeois. Long Primer, Small Pica, Pica, English, Great Primer, Paragon, Double Pica, Two-line Pica, etc.
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Entry taken from Printers' Vocabulary, by Charles Thomas Jacobi, 1888.