Ἑλλησποντοφύλακες
From LSJ
πολλὰ μεταξὺ πέλει κύλικος καὶ χείλεος ἄκρου → there is many a slip twixt cup and lip, there's many a slip twixt cup and lip, there's many a slip 'twixt cup and lip, there's many a slip twixt the cup and the lip, there's many a slip 'twixt the cup and the lip
English (LSJ)
[ῠ], οἱ,
A customs officials established by Athens to control the trade of the Hellespont, IG12.57.36.
Greek (Liddell-Scott)
Ἑλλησποντοφύλακες: οἱ, ἄρχοντες διωρισμένοι ὅπως ἐποπτεύωσι τὴν διάβασιν τοῦ Ἑλλησπόντου, Συλλ. Ἐπιγρ. Ἀττ. 1. 40.