σημαντήριον
From LSJ
Θέλομεν καλῶς ζῆν πάντες, ἀλλ' οὐ δυνάμεθα → Bene vivere omnes volumus, at non possumus → Gut leben wollen wir alle, doch wir können es nicht
English (LSJ)
τό,
A mark or seal upon anything to be kept, A.Ag.609; dub. sens. in S.Fr.432.9. II place for coining money, mint, Harp. s.v. ἀργυροκοπεῖον.