Possible similar coins from which I see more that it is Macedonia: https://www.acsearch.info/search.html?id=689378 https://www.acsearch.info/search.html?id=2088093 And the letters Rv. KIΔ / EΩN on my coin are more like a similar coin in silver from Macedonia. https://www.acsearch.info/search.html?id=3605364 Makedonien. Chalkidischer Bund. Bronze. Ca. 420 - 348 v. Chr. Olynthos. Vs: Kopf des Apollon mit Lorbeerkranz links. Rs: Kithara. 17 mm. 5,57 g. SNG ANS 551; HGC 3, 511 var. Seltene Vorderseitenvariante . Sehr schön. https://www.acsearch.info/search.html?id=3644483 https://www.acsearch.info/search.html?id=4951058 Greek MACEDON, Bottiaiai (Spartolos). Circa 385-350 BC. Æ (16mm, 4.09 g, 3h). Laureate head of Apollo right / Kithara. Psoma, Olynthe, Group XVII; HGC 3, 354. VF, dark green-brown patina, some roughness. From the Belgica Collection.
