A popular market matched set. The only catalogue I’ve got access to is for 1937, so I don’t have a lot to say about this somewhat later item.
Production Run: c.1940 – c. 1950 (an earlier model would have a more arrow-headed clip).
Cost When New: $1.50 (based on a roughly similar set from 1937; for modern value, try this calculator).
Size: I neglected to measure it before I sent it along home.
Point: Plated steel.
If you are relying on the preceding information to win a bet or impress a teacher, you should read the site’s scholarly caveat. Remember, this is the internet, and it’s full of bad information.