IGASMG III 2 presents a very diplomatic edition of this very famous and much discussed inscription (discovered in 1954). Colvin, no. 25 is less conservative. Other restorations have been proposed by Calvert Watkins and P.A. Hansen. Anne Jeffery's notes are online.
Colvin notes that ποτήριον is not a Homeric word, but survives into Modern Greek as ποτήρι. Its place in Modern Greek follows its place in the Koine (e.g. 1 Corinthians 11: 25 f.), but it is found as early as Sappho (44.10) and Alcaeus 376 and in early Attic epigraphy (e.g. IG I^3 292 ποτέ̄ρια ἀργυρᾶ). In Athenaeus 11.460b, Semonides of Amorgos is said to have been the first to use it (the corrupt iambic quotation is fragment 26 West). The noun also appears in Latin. Plautus has poterium twice (at least): Stich. 694 and Trin. 1017.
As a name, Nestor has some historical currency.
There is also the seventh-century maker's mark of Pyrrhos, for once an early name that is not rare, on an aryballos (so LSAG 88.22, but Buck, no. 9 'lecythus').
The digamma is absent in ἐποίε̄σεν, but present in Ἀγασίλε̄ϝος (< λᾱϝός), who is Ἀγασίλεως in LGPN I (cf. Ἀγασίληϝος).