There was a 2020 a KAL project page for this pattern:

https://www.ravelry.com/discuss/countrywoolers/4044706/

materials:
Cascade 220 Sport wool 50 grams/164 yards
or
Galway Sport wool 50 grams/151 yards
or
Ultra Alpaca Light 50 gram/144 yards
or any combination of them

1 skein each of 3 colors:
A (oatmeal), B (olive), C (hazel)
darning needle
magnetic chart board (optional)
needles: 16” circular #5
(or #4 OR #6)
AND double pointed needles in larger size

Gauge: in stranded color pattern: 6.75 sts=1”.
This will block out larger at 6.5 sts=1”.

Sizes:
Small 18.5” (Medium 21.5”, Large 23.5”)

Hat ends up being
8, 9 , 10” deep
with top chart