Fonts originally consisted of a set of moveable type letterpunches purchased from a

type foundry A type foundry is a company that designs or distributes typefaces. Before digital typography, type foundries manufactured and sold metal and wood typefaces for hand typesetting, and matrices for line-casting machines like the Linotype and ...

. As early as 1600, the sizes of these types—their "bodies"—acquired traditional names in English, French, German, and Dutch, usually from their principal early uses. These names were used relative to the others and their exact length would vary over time, from country to country, and from foundry to foundry. For example, "agate" and "ruby" used to be a single size "agate ruby" of about 5

points A point is a small dot or the sharp tip of something. Point or points may refer to: Mathematics * Point (geometry), an entity that has a location in space or on a plane, but has no extent; more generally, an element of some abstract topologica ...

; metal type known as "

agate Agate ( ) is a banded variety of chalcedony. Agate stones are characterized by alternating bands of different colored chalcedony and sometimes include macroscopic quartz. They are common in nature and can be found globally in a large number of d ...

" later ranged from 5 to 5.8 points. The sizes were gradually standardized as described above.. Modern Chinese typography uses the following names in general preference to stating the number of points. In ambiguous contexts, the word ''hào'' ( t , s , "number") is added to the end of the size name to clarify the meaning. Note that the Chinese font sizes use American points; the Continental systems traditionally used the Fournier or Didot points. The Fournier points, being smaller than Didot's, were associated with the names of the Didot type closest in size rather than identical in number of points.

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{{Typography terms Typography Units of length

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