Sardis (Achaeus), silver, tetradrachms (Achaeus/Athena Promachos) (220-214 BCE)
From SILVER
220 BCE - 214 BCE Silver 361 kg
Description
| Obverse: | Diademed and draped bust of Achaeus right |
| Reverse: | BAΣΙΛΕΩΣ AXAIOY (Greek).Athena Promachos, viewed from behind, advancing left, brandishing spear and shield |
Mint and issuing power
| Mint: | Sardis | Ancient region: | Lydia | Modern country: Turkey | Authority: | Seleucid Dynasty (312-63 BC), Achaeus (Seleucid general proclaimed king 220-214 BCE) |
Chronology
| From | 220 BCE | to | 214 BCE | Period: Hellenistic 323-30 BC 
|
Physical description
| Metal: | Silver
|
Median weight in grams | 16.70 | Denomination: | tetradrachm
|
Standard: | Attic |
Image
References
| Die study reference: | "[[Die study reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]1Hochard 2024, p. 70-71, n° 66-69 | ||
| Coin series reference: | "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]2WSM, n° 1440, "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]3CSE, n° 608, "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]4SC I, n° 953, "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]1Hochard 2024, p. 70-71, n° 66-69 | ||
| Coin series web reference: | |||
Obverse dies distribution
| Frequency ᵖ | Number of obverses ᵖ (o) | % (o) | Number of coins (n) | % (n) | Die name |
| 6 | 1 | 100 | 6 | 100 | 45 |
| Total | 1 of 1 | 100 | 6 of 6 | 100 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 1 | Number of singletons (o1) ᵖ | 0 |
| Number of reverse dies (r) | 4 | Number of coins (n) | 6 |
| Coins per obverse die (n/o) | 6 | Coins per reverse die (n/r) | 1.5 |
| Reverse per obverse ratio (r/o) | 4 | Percentage of singletons (o1) ᵖ | 0 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 1.08 | Coins struck if 20,000 as average productivity per die ᵖ | 21,600 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 1.2 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00028 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 100% | Die productivity if survival rate 1/2,000 ᵖ | 11,111.11 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ | 361 kg <br /> 361 kg | Die productivity if survival rate 1/5,000 ᵖ | 27,777.78 |
Remarks
Most likely one single workstation Likely military
References
- a b Hochard, Pierre-Olivier (2024), "L'atelier de Sardes sous les Séleucides," Revue numismatique, 181, p. 49-109.
- ^ Newell, Edward T. (1941), The coinage of the western Seleucid mints from Seleucus I to Antiochus III, Numismatic Studies 4, New York, 450 p., LXIV pl.
- ^ Houghton, Arthur (1983), Coins of the Seleucid Empire from the collection of Arthur Houghton, Ancient Coins in North American Collections 4, New York, xiv, 122 p., 2 fold. charts, 77 pls.
- ^ Houghton, Arthur - Lorber, Catharine (2002), Seleucid coins : a comprehensive catalogue. Part 1, Seleucus I through Antiochus III, New York - Lancaster - London, 2 v. (xxxviii, 488 p. + 300 p.), 101 pl.
