Type variables occurring as monotypes behave as if they were type constants whose identity is unknown.
en.wikipedia.org As a consequence, a free type variable can not be interpreted better than stating it is a monotype without knowing the context.
en.wikipedia.org Practical courses are given in painting, drawing, sculpture, ceramics, weaving, jewelry, photography, batik, lithography, paper making, etching, monotype printing, and silkscreen.
en.wikipedia.org A monotype always designates a particular type, in the sense that it is equal only to itself and different from all others.
en.wikipedia.org He worked in a variety of media including etching, lithography, water color, monotype, linocut, woodcut, oil, photography, mezzotint and silversmithing.
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