訓 あかがね ・ 音 ドウ
漢越音: đồng
The metal radical 金 gives the meaning and 同 (đồng) gives the exact sound. Sino-Vietnamese đồng, as in huy chương đồng (bronze medal).
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
彼はマラソンで銅メダルを取った。 (かれはまらそんでどうめだるをとった)
He won a bronze medal in the marathon.