Specimen

Noun

1. An individual instance that represents a class; an example.

   "early specimens of the art of Picasso"

2. A banknote printed for distribution to central banks to aid in the recognition of banknotes from a country other than their own
3. A postage stamp sent to postmasters and postal administrations so that they are able to identify valid stamps and to avoid forgeries
4. An unpleasant or contemptible person.
5. A sample, especially one used for diagnostic analysis.