An object, usually in the shape of a block or a plate, used in printing to apply ink on the printed surface.
A postage stamp sent to postmasters and postal administrations so that they are able to identify valid stamps and to avoid forgeries
An eligible man.
An individual instance that represents a class; an example.
A banknote printed for distribution to central banks to aid in the recognition of banknotes from a country other than their own
A sample, especially one used for diagnostic analysis.