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Title: The Practical Sampler
Materials: Linen and Thread
Artist: Mary Sheperd
Designer: Eileen Bennett
Technique: Counted Thread Work (including counted cross-stitch
and at least fourteen other stitches)
Artist’Äôs Description: This sampler includes four of the seven
possible frieze patterns and two of the possible twelve wallpaper patterns.
(Only twelve wallpaper patterns are possible on evenweave work.) The frieze
patterns appearing are (1) pmg2---vertical mirrors, no horizontal mirrors,
glide reflection and 180 degree rotation,
(2) p1m1---horizontal mirror only,
(3) p111---no symmetries beyond the translational one, and
(4) p112---no mirrors, no glide reflections and two 180 degree rotations.
The wallpaper patterns appearing are
(1) pmm---has only 180 degree rotational symmetry, reflections and
any axis of a glide reflection is also an axis of a reflection,
(2) cm---no rotational symmetries, does have a reflection and there
is an axis of a glide reflection that is not an axis of any reflection.
Can you identify each? How many of each pattern type can you find?