This strange, small coin, is an enigma, I've never seen anything like it. One side has a celtic knot, the other side has 3 six-pointed stars. The celtic knot seems to indicate Celtic origin, but I'm lost. Diameter is 10mm
Turkish, perhaps. Similar to #37 on pp. 15 and 16 of Valentine...maybe a different denomination? https://archive.org/details/moderncoppercoin00vale/page/14/mode/2up