Some of the backgrounds have tiny dots that also look embroidered
https://buttonbird
It was a technique used in the 1800's by the Czech Republic but even by the 1900's was rarely done even in Czechoslovakia
in deepest browns blending with black
Re-Stocked - Great Wave of Kanagawa Cotton Tenugui Towel from Japan, 100% Cotton 12" x 34" #RK-11 Kids Some of the backgrounds haveTenugui towel, lightweight 100% cotton, thin and light double gauze that feels a bit like extra soft cotton muslin. They are lightweight, quick drying, cuddly soft and softer with time, easy to take anywhere, absorbent without being too thick or fluffy. In Japan, Tenugui towels may be used as dish towels, scarves, napkins, souvenirs, wrapping cloths, placemats, trivets, bento wrapping, head bands, ear warmers, wall hangings, table runners, head wraps,