From The Collaborative International Dictionary of English v.0.48:
Sampler \Sam"pler\, n. [See Exampler, Exemplar.]
1. One who makes up samples for inspection; one who examines
samples, or by samples; as, a wool sampler.
[1913 Webster]
2. A pattern; a specimen; especially, a collection of
needlework patterns, as letters, borders, etc., to be used
as samples, or to display the skill of the worker.
[1913 Webster]
Susie dear, bring your sampler and Mrs. Schumann
will show you how to make that W you bothered over.
--E. E. Hale.
[1913 Webster] Samshoo