Lots of long, thin pins that slide inside the frame. I pressed it against the bull nose edge of a countertop. The pins don’t move very easily, as it’s very old and all-metal, so there is likely dust and maybe some rust inside. Newer versions are made of plastic.
I offered this one to Clare’s youngest brother: “This was Dad’s. Do you want it? (FWIW, I don’t think I’ve ever used it.”
Rich’s reply: “I’ve got one and I’ve never used it either…”
A modern replacement can be had for ~$20 and this is a home, not a museum…
Retired economics professor (“dismal scientist”). Married 40+ years to the love of my life; we have two grown daughters, both married, two granddaughters and a...