Pendleton? Vintage 50s-60s woven plaid straight skirt size 6

This looks like a classic Pendleton weave, but there is no tag to prove it. It could be Home-made, if so, by an expert seamstress! from my personal collection since the mid 90s when i found it -vintage. Slight Hobble; rear kickpleat. pin up lines and curves Below the knee. Unlined. Very chic and interesting color combination with Loden greens and black- with the electric blue and green lines running through the (rather bland) plaid Waist=28” Hips= 39” Length= 25.5”