The Stater denomination
The Stater was an ancient Greek or Lydian denomination, which circulated from the 8th century BC to AD 50. It was also struck in gold by Celtic tribes.

The silver staters minted at Corinth weighed 8.6 grammes, and was divided into three silver drachmae of 2.9 g. It was roughly equivalent to the Athenian didrachm, which weighed 8.6 g.

Apart from the Corinthian stater, one of the most iconic staters is the Turtle/Incuse stater from Aegina - an important early trading currency.
Stater

(1) Aegina c. 510-485 BC
Obverse: turtle, row of dots on the back
Reverse: incuse square ( “Union Jack” pattern)
Ref: Milbank 3; BMC Attica, p. 126, 3; S...
(2) Aegina c. 450 BC
Obverse: Land tortoise
Reverse: Square incuse with skew pattern.
Ref: None provided
(3) Ambracia 426-404 BC
Obverse: Pegasus
Reverse: Head of Athena, strigel behind, A before. Die flaw before Athena's face
Ref: Calciati-35
(4) Corinth 405-345 BC
Obverse: Pegasos flying left, Q below
Reverse: Helmeted head of Athena right; ithyphallic herm and N behind
Ref: Pegasi I 385; Ravel 1068; BCD -; SN...
(5) Kaunos 450-430 BC
Obverse: Iris? running left holding kerykeion and wreath
Reverse: Baetyl, granulated patterns resembling birds on either side
Ref: Dewing 2359 (same dies); Konuk, "Th...
(6) Leukas 375-350 BC
Obverse: pegasos flying left; Λ
Reverse: head of Athena left wearing Corinthian helmet; ΛEYKA_ΔIΩN / Π
Ref: Pegasi 48/1
(7) Metapontion c. 330-290 BC
Obverse: head of Demeter right wearing grain ears, triple pendant earring and necklace
Reverse: ear of barley with leaf to right; plough right; META / MAX
Ref: Johnston Class C1:4; HN Italy 1581
(8) Soloi 410-375 BC
Obverse: Head of Athena right
Reverse: Wine grapes
Ref: SNG v. Aul. 5864 var.
(9) Thasos 500-480 BC
Obverse: Nude Satyr in kneeling-running stance to right, carrying off a protesting nymph
Reverse: Quadripartite incuse square
Ref: SNG Copenhagen 1010-1011; HGC 6, 33...
(10) Thessalian League 47-46 BC
Obverse: Head of Zeus right, wearing laurel wreath; [I]TAΛO[Σ] behind
Reverse: Athena Itonia advancing right; [Δ]IO-KΛHΣ above spear, N-I in inner fields
Ref: McClean 4797-8; SNG Copenhagen 277