Ecbatana (Seleucus I), silver, hemidrachms (Heracles/seated Zeus - ΑΛΕΞΑΝΔΡΟΥ) (311-293 BCE)
From SILVER
311 BCE - 293 BCE Silver 500 kg
Description
| Obverse: | Beardless head of Heracles right wearing lion skin headdress |
| Reverse: | ΑΛΕΞΑΝΔΡΟΥ (Greek).Zeus seated on high-backed throne left, holding eagle on outstretched right hand and sceptre in left |
Mint and issuing power
Chronology
| From | 311 BCE | to | 293 BCE | Period: Hellenistic 323-30 BC 
|
Physical description
| Metal: | Silver
|
Median weight in grams | 2.10 | Denomination: | hemidrachm
|
Standard: | Attic |
Image
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References
| Die study reference: | "[[Die study reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]1Boillet 2009, p. 78-79, n° 239-253 | ||
| Coin series reference: | "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]2SC I, n° 212 | ||
| Coin series web reference: | |||
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 8 | Number of singletons (o1) ᵖ | 5 |
| Number of reverse dies (r) | 8 | Number of coins (n) | 18 |
| Coins per obverse die (n/o) | 2.25 | Coins per reverse die (n/r) | 2.25 |
| Reverse per obverse ratio (r/o) | 1 | Percentage of singletons (o1) ᵖ | 62.5 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 11.9 | Coins struck if 20,000 as average productivity per die ᵖ | 238,000 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 14.4 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00008 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 72.22% | Die productivity if survival rate 1/2,000 ᵖ | 3,025.21 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ | 500 kg <br /> 500 kg | Die productivity if survival rate 1/5,000 ᵖ | 7,563.03 |
Remarks
Most likely one single workstation
References
- ^ Boillet, Pierre-Yves (2009), Ecbatane et la Médie d’Alexandre aux Arsacides (c. 331 a.C. - c. 224 p.C.). Histoire monétaire et économique, unpublished doctoral dissertation, Bordeaux University.
- ^ 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.
