Rectangular fillet doily is crocheted with 1.5 mm hook from DENDY yarn, 100% mercerized cotton, 330 meters in 50 grams. The size of the fillet doily is 78 by 36 cm. Weight 83 grams. The color of the yarn is "lingonberry". According to its parameters, this is a doily-runner.
Fillet crochet began with embroidery on a grid. And then they decided to crochet a grid and fill the cells of the grid with columns or leave them empty as they crocheted.
Playlist on crochet and crocheting doilies:
Crocheted and crocheted doilies - https://www.youtube.com/playlist?list=PLdr2P8TRcIw2ASO1hn956vnDxB-AAuv3u