The Chalkous denomination
The chalkous (plural: chalkoi) was an ancient Greek bronze coin denomination. The chalkous was the smallest fraction of a coin in Greek poleis, but the weight varied. In Athens one obolos equalled 8 , in Delphi and Epidaurus 12 , and in Priene 16 chalkoi.

Other denominations based on the Chalkous were struck, e.g. the tetrachalkon, the dichalkon, and the hemichalkon.
An AE Chalkous struck 369-359 BC in Pherai
Obverse: forepart of butting bull right

Reverse: forepart of horse right; AΛEΞAN / ΔPOY

Diameter: 14 mm
Die Orientation: -
Weight: 2.5 g
No notes for this coin
BCD Thessaly II 708.2; HGC 4, 584
(2) Keramos
An AE Chalkous struck c. 410-390 BC in Keramos
Obverse: bull right; ΞE

Reverse: dolphin right; ΔYO

Diameter: 8 mm
Die Orientation: -
Weight: 0.7 g
No notes for this coin
SNG Kayhan I, 804; GM 97 (1999), 388; Türkoglu 2019, A.1B; Konuk 2007, M 23
An AE Chalkous struck 400-300 BC in Mygissos | Mylasa
Obverse: laureate head of Poseidon right

Reverse: dolphin right, trident below; MY

Diameter: 10.5 mm
Die Orientation: -
Weight: 1.3 g
No notes for this coin
Asthon 1999b, p. 15 C; Akarca 1959, p. 60
(4) Pelinna
An AE Chalkous struck c. 425-350 BC in Pelinna
Obverse: Horseman left, striking at fallen Hoplite with javelin

Reverse: Warrior advancing left, holding shield ΠEΛINNA_ION

Diameter: 14 mm
Die Orientation: -
Weight: 3.05 g
No notes for this coin
Rogers 427; BCD Thessaly 520; SNG Copenhagen 186-7 var
(5) Phalanna
An AE Chalkous struck 350-300 BC in Phalanna
Obverse: male head right

Reverse: head of Nymph right wearing sakkos; ΦΑΛΑΝΝΑΙΩΝ

Diameter: 12.5 mm
Die Orientation: -
Weight: 2.3 g
No notes for this coin
Papaevangelou-Genakos 6; Rogers –; BCD Thessaly II 586.2.