Very unique (custom?) vintage pants from the ‘50s (?) in awesome plaid polyester

Vintage (50’s?) custom (?) polyester pants in a deep chocolate brown color with distinctive squared pattern fabric (detail shown in close-up photo). Measurements : • 34” waist • 30” inseam • 41” length (outseam) • 12” rise • 19” leg cuff width (9.5” flat)