Genuine vintage Pearlustra socks, unsold shop stock, about half a century old but unused.  Short socks. White.  They appear to be rayon or a rayon blend. Made in England around the 1950s.  Hand wash only. 

Size:
These socks are marked with the old SOCK SIZES, based on foot length.
Sock size (foot length) 6 1/2 inches.
This is roughly equivalent to UK shoe size 8 to 9 (small children's size, primary school age).
These are very old socks, and they are not stretchy like modern ones.

Condition: Vintage socks, made in the 1950s.  Unused, and in extremely good condition.  They have been in storage for half a century, and are obviously not suitable for ordinary use, but they might come in handy for display, or as part of an authentic 1950s theatre costume or similar.  The staples in the labels will probably leave a mark when you remove them.