80s vintage no show sport socks, golf or tennis socks white cotton w/ colored trim

New old stock lot of 12 pairs of ladies cotton / nylon sport socks, soft and light, a thinnish knit fabric. These are unused, still in the original plastic packages.

Size is marked a 9-11. These are about 7 1/2" down the foot unstretched, I'd say probably closer to today's size 8-9 shoe size. Ankle opening is fairly small, foot shaping seems narrow.