Blue, yellow and green silk on linen. Greek stitch.
Egypt, Mamluk period (mid 13th-early 14th century, radiocarbon date 1285±40)
It is not apparent from the single repeat of the motif worked in green,
but when spaced properly, this is a counterchange pattern.

Ellis, Marianne Embroideries and Samplers from Islamic Egypt. Oxford: Ashmolean Museum, 2001. #35 (p. 53).