Dunno - I had loads of the things, got them pinned to a massive black tie I had made up for one of the kids 20-odd years ago.
RUC ones were the original? Rupert The Bear with a pin, not butterfly clip.
https://gmic.co.uk/topic/36589-polic...tie-tacksquot/
Only one I have left, somewhere, is a Sheehey cuts skull and sickle one.
Maybe a few of the US police and fire service "911" pins from 2001, 2002.