Both the threads and the pattern for this bookmark are Japanese. The pattern, a two-shuttle project, is edging # 13 from Sumi Fujishige's Tatting Lace (ISBN: 4-529-04170-0), one of the many Japanese tatting books with that title. This one, I believe, is now out of print. The threads are Japanese-made Olympus brand in size 40 in lime green and teal green. Unlike the book, these threads are still readily available from online tatting supplies sources.