Passage 1.15.4
ἐνταῦθα ἀσπίδες κεῖνται χαλκαῖ, καὶ ταῖς μέν ἐστιν ἐπίγραμμα ἀπὸ Σ κιωναίων καὶ τῶν ἐπικούρων εἶναι, τὰς δὲ ἐπαληλιμμένας πίσσῃ, μὴ σφᾶς ὅ τε χρόνος λυμήνηται καὶ ὁ ἰός, Λακεδαιμονίων εἶναι λέγεται τῶν ἁλόντων ἐν τῇ Σφακτηρίᾳ νήσῳ.
Here lie bronze shields; some of them bear inscriptions stating they are from the Sicyonians and their allies. But those covered with pitch—to protect them from time and rust—are said to belong to the Lacedaemonians taken prisoner on the island of Sphacteria.