One of them was a 20 Heller - Franz Joseph I from 1894
https://en.numista.com/catalogue/pieces2390.html
in very nice condition..BUT it has clearly been made into a necklace or something in the past.
Pictures included

What position in my mind should I take towards this? What grade would you give to it? Sorry if the pics are not good, I suck at using macro+flash.