An ornamental pin worn in a scarf or necktie.(noun)
The Century Dictionary (Public Domain)
Use "scarf-pin" in a sentence
"His well-brushed top hat glittered, his varnished boots glittered, and his rings and scarf-pin glittered; in fact, so resplendent was his appearance that he looked like an animated diamond coming along in the blazing sunshine."
"He may not answer your kind enquiries, but look you up and down from the welt of your boot to your scarf-pin."
"The man, whose incinerated body still lay curled in its bed of cinders, had been dressed at the moment of disaster; even to the watch, the cuff-buttons, the studs, the very scarf-pin."