The Didrachm denomination
An ancient Greek silver coin denomination with a value of 2 drachms or 1/2 tetradrachm.

It weighed around 8.6 grammes, and could feature some impressive artwork due to the relatively large flans.
(1) Akragas
An AR Didrachm struck 480-470 BC in Akragas
Obverse: sea eagle; AK / AЯ

Reverse: crab

Diameter: 20 mm
Die Orientation: -
Weight: 8.6 g
ex Dr. Ernst von Ferrari-Kellerhof
Jenkins, Gela, Group IV; SNG ANS 954-5.
(2) Akragas
An AR Didrachm struck 510-472 BC in Akragas
Obverse: Crab

Reverse: Eagle, with closed wings, standing right; AK behind, RA before

Diameter: 19 mm
Die Orientation: -
Weight: 8.4 g
No notes for this coin
Sear 709 A
An AR Didrachm struck c. 405-400 BC in Hyria (Campania)
Obverse: head of Hera Lakinia facing slightly right, wearing necklace and polos ornamented with palmette between the foreparts of two griffins

Reverse: man-faced bull walking right YPINA (retrograde)

Diameter: 21 mm
Die Orientation: -
Weight: 6.9 g

From the H.J. Müller collection.

Rutter 134; Historia Numorum Italy 540
(4) Korkyra
An AR Didrachm struck c. 229-48 BC in Korkyra
Obverse: Head of Dionysos right wearing ivy-wreath

Reverse: Pegasos; below prow right (KP) (AV) (KP)

Diameter: 22 mm
Die Orientation: -
Weight: 4.7 g
No notes for this coin
HGC 6, 65
An AR Didrachm struck 400-340 BCE in Metapontion
Obverse: Head of Demeter right, hair bound with wreath of barley ears

Reverse: META (Barley ear)

Diameter: 19.6 mm
Die Orientation: 6 H
Weight: 8.05 g
At the bottom of Demeter's neck, one can just make out the top of an A and an Ρ for 'ΑΡΙ', or Aristoxenos, the die-cutter. Provenance: Hess-Leu, Lucerne, March 27th 1956, lot 22. Peus, Frankfurt, auction 274, October 29th 1970, lot 1511. Privately purchased from ArtAncient.
No references provided for this coin
(6) Rhodos
An AR Didrachm struck c. 316-305 BC in Rhodos
Obverse: Helios head facing slightly right

Reverse: rose, grape cluster left, bud to the right; POΔION / E

Diameter: 18.5 mm
Die Orientation: -
Weight: 6.8 g
No notes for this coin
Ashton 2001, 108; SNG Keckman I, 445; SNG Ashmolean XI, 551
(7) Tyre
An AR Didrachm struck c. 330-329 BC in Tyre
Obverse: Bearded Melqart riding hippocamp with curled wing to right, waves and dolphin below

Reverse: Owl standing right, head facing; crook and flail behind date II (year 2) and Phoenician letter tsade in right fields

Diameter: 21 mm
Die Orientation: -
Weight: 8.6 g
ex Forum Ancient Coins
BMC Phoenicia p. 231, 29; SNG Cop 307 var.(year)