Assertion: clasp's clasp | /r/AtLocation | the shape of a small circle
Facets:
value: on a very tiny spring coil
type: LOCATION
value: with a push-pin
type: OTHER
Source sentences:
text: Since 1900 we know the "spring-ring" clasp which is in the shape of a small circle with a push-pin on a very tiny spring coil which opens and springs shut for closure around another small ring when you push on a tiny lever.