This pattern is available on Ravelry.

Spate’s shaped triangular shawl flies off the needles once you cast on for the wide edge and decrease down to its tapered point. Wear it as an oversized kerchief or a shoulder-warming shawl—in Sparrow linen this is a versatile accessory meant for any occasion.

sparrow / port 207
3 skeins

one pair in size US 4 / 3.5 mm

22 sts and 32 rows = 4” / 10 cm in stockinette stitch, after wet blocking

skills required
Long-tail cast on, increasing and decreasing.

See more like this: