Tiny Tuesday: "Small but essential"

Yesterday the leg dropped off my reading glasses. The tiny screw that holds the leg to the frame had come loose and fallen out - and vanished, of course. Luckily I was able to cannibalise an old broken pair (which by rights should have been binned) and repair them.

Today, right on front of me on my desk, I spotted - the "lost" screw! So it's now been screwed into the old broken pair for safe keeping, as it will no doubt be needed in future...

(Tip of a ball point pen included for scaling purposes.)