Browsing LIFE magazine back-numbers a while ago, spotted the exact same little object in an advert.
(LIFE magazine, October 1951)
Seeing this made me go find it. This particular one was made by 3M in Birmingham, England - probably in the early fifties. It's metal, but fairly flimsy.
Having this extra bit of information adds now a bit of extra context to this small and almost disposable little household object.