Ecbatana (Seleucus I), silver, didrachms (Heracles/seated Zeus - ΑΛΕΞΑΝΔΡΟΥ) (303-293 BCE)
From SILVER
303 BCE - 293 BCE Silver 1,635 kg
Description
| Obverse: | Head of Herakles right, wearing the lion headdress and the ram horn. |
| Reverse: | ΑΛΕΞΑΝΔΡΟΥ (Greek).Zeus seated to left, holding an eagle and a scepter. (In the field, forepart of a grazing horse or ancor, monogram and/or letters). (Under the throne, monogram). Border of dots. |
Mint and issuing power
Chronology
| From | 303 BCE | to | 293 BCE | Period: Hellenistic 323-30 BC 
|
Physical description
| Metal: | Silver
|
Median weight in grams | 8.50 | Denomination: | didrachm
|
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. 73-74, no. 220-225. | ||
| Coin series reference: | "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]2Price 1991, n° 3890, 3904 and 3919, "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]3SC I, n° 206, "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]4HGC 9, n° 25 | ||
| Coin series web reference: | |||
Obverse dies distribution
| Frequency ᵖ | Number of obverses ᵖ (o) | % (o) | Number of coins (n) | % (n) | Die name |
| 1 | 3 | 75 | 3 | 50 | 2, 3, 4 |
| 3 | 1 | 25 | 3 | 50 | 1 |
| Total | 4 of 4 | 100 | 6 of 6 | 100 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 4 | Number of singletons (o1) ᵖ | 3 |
| Number of reverse dies (r) | 4 | Number of coins (n) | 6 |
| Coins per obverse die (n/o) | 1.5 | Coins per reverse die (n/r) | 1.5 |
| Reverse per obverse ratio (r/o) | 1 | Percentage of singletons (o1) ᵖ | 75 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 9.62 | Coins struck if 20,000 as average productivity per die ᵖ | 192,400 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 12 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00003 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 50% | Die productivity if survival rate 1/2,000 ᵖ | 1,247.4 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ | 1,635 kg <br /> 1,635 kg | Die productivity if survival rate 1/5,000 ᵖ | 3,118.5 |
Remarks
Most likely one single workstation Likely military
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.
- ^ Price, Martin Jessop (1991), The Coinage in the Name of Alexander the Great and Philip Arrhidaeus: a British Museum Catalogue, 2 vol., Zürich-London, 637 p., 637 p., clix pl.
- ^ 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.
- ^ Hoover, Oliver D. (2009), Handbook of ancient Syrian coins : royal and civic issues, fourth to first centuries BC, The Handbook of Greek Coinage 9, Lancaster, lxix, 332 p.
