Vintage 1940s white back-seamed stockings for nurse uniforms. They are a heavier weight than silk or nylon and are most likely a cotton or cotton blend. There are a few brown specks on the foot. There is a small repair on the heel.
The foot measures 9 1/2" long and the stockings are 28 1/2" long.
These were picked up in Germany, but work great for US or German impressions.