Wonder Maid bottoms non cling 100% Antron Nylon sz medium pale yellow

Wonder Maid bottoms. Non cling. Size medium. Union label, ILGWU on tag. Black and white label. 100% Antron Nylon. Soft and silky feel. Light elastic band at waist. Little dainty stitching at leg hem. One small black dot on back of pants. I have not tried to remove. Could be used as sleep pants, or as slip pants. Soft enough to sleep in. No holes or tears. Only the tiny spot.