exemplar

noun

• Something fit to be imitated; an ideal, a model.
• A role model.
• Something typical or representative of a class; an example.
• A pattern after which others should be made; an archetype.
• A well known usage of a scientific theory.
• A handwritten manuscript used by a scribe to make a handwritten copy; the original copy of what gets multiply reproduced in a copy machine.
• A copy of a book or piece of writing.