tie pin

When pulling on the tie pin the arms of the holder tend to draw together and clamp it on the pin.

No tie pin nor trinkets of any description should be allowed servants.

I showed him my gold watch, my silver cigarette case, and my emerald and diamond tie-pin—that was the sort of man I was.

He took out the gold pencil presented to him by the Emperor—(the station-master had had a tie-pin)—and wrote a note.

He checked the time against his tie-pin watch, with a grunt of satisfaction he turned back and stabbed a finger at Jon.