I could just kick myself that I collected these towels below without finding out more about them. I honestly can't call them "Russian" because of the designs -- some may be traditional designs from the Ukraine or other Baltic SSRs. I'm not even sure which word to use: полотенце or рушник -- both mean "towels". These long meters of loomed linen were used for normal "towel" use, home decoration and/or for draping over an icon. Most towels seem to have had an extra edging added -- obviously for additional beauty!
This book from the Museum of Folk Art in Moscow (1990) calls them полотенце and describes the edges as конец полотенца (towel edges), with ornamental bands.
cross stitch with filet crochet edging
more cross stitch with family initials