This is a job lot of 3 men's socks from the 1920s or very early 1930s in deadstock condition with original tags made by Pilot. Pilot was a high-quality maker of socks, stockings, and underwear. The fabric is in absolutely fantastic shape, completely stretchable, and with vibrant colors.
The tag reads size 11 but here are the measurements:
Heel to toe, flat unstretched: 10" (26cm)
Length from top to heel: 13" (33cm)
Condition: Deadstock with original tags. There are two that have one small brownish mark each (view photo), not remarkable at all. No other issues, stains, or holes.