Here's a follow-up of this thread by @Finn235 : my large Valerian and small Trajan - 11 mm, so a monster compared to the diminutive silver Greeklets, but still. I'm sure you can top me, especially in the large sector. I believe there are third century bronze Roman Provincial coins measuring 45 mm instead of my meagre 35. AE35 Valerianus I (253-260). Cilicia, Seleucia ad Calycadnum. Obv.: Radiate, draped, and cuirassed bust right. Rev.: Draped bust of Apollo right, laurel branch before, vis-à-vis laureate and draped bust of Artemis-Tyche left, cornucopiae behind. 35 mm, 18.51 gr. SNG France 1061-1063. AE11 half quadrans Trajan (98-117). Rome Mint for Antiochia Seleucis. Obv. Laureate bust right. Rev. SC in wreath. 11 mm, 1.48 gr. McAlee 526. RPC online Nr. 3680.