"Aluminium Alloy Lightweight Knitting Pins"
4 of them
"Featherweight. Tapered Points. WILL NOT SOIL OR CHIP. Smooth. RIGID"
Everything you could want from a knitting needle.
They are 7" long, gauge 10.
And come in little fold over paper packets.
Manufactured by AVIATION PRODUCTS CO, Montreal Canada.
Presumably for pilots that knit.