A sample is generally not made in order to be displayed, in contrast to a sampler, which is a more formalised piece of work that was intended to be shown and seen in public.
The TRC in Leiden houses a sample from the Miao ethnic minority in China, which was used for teaching weaving techniques (TRC 2018.2084).
Rijksmuseum Amsterdam online catalogue (retrieved 26th August 2018).
GVE