Ecbatana (Alexander Balas), silver, drachms (Alexander/Apollo) (152-145 BCE)
From SILVER
152 BCE - 145 BCE Silver 740 kg
Description
| Obverse: | Diademed head of Alexander I to right. |
| Reverse: | BAΣIΛEΩΣ / AΛEΞANΔPOY - ΘΕΟΠΑΤΟΡΟΣ / ΕΥΕΡΓΕΤΟΥ (Greek).Apollo seated left on omphalos, holding arrow in his right hand and resting his left on grounded bow, to outer left, monogram |
Mint and issuing power
| Mint: | Ecbatana | Ancient region: | Media | Modern country: Iran | Authority: | Alexander I Balas (Seleucid king, 152-145 BC), Seleucid Dynasty (312-63 BC) |
Chronology
| From | 152 BCE | to | 145 BCE | Period: Hellenistic 323-30 BC 
|
Physical description
| Metal: | Silver
|
Median weight in grams | 3.90 | Denomination: | drachma
|
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.]]1Boillet 2009, p. 260-261, n° 1252-1255. | ||
| Coin series reference: | "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]2SC II, n° 1871 | ||
| Coin series web reference: | |||
Obverse dies distribution
| Frequency ᵖ | Number of obverses ᵖ (o) | % (o) | Number of coins (n) | % (n) | Die name |
| 1 | 2 | 66.67 | 2 | 50 | 2, 3 |
| 2 | 1 | 33.33 | 2 | 50 | 1 |
| Total | 3 of 3 | 100 | 4 of 4 | 100 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 3 | Number of singletons (o1) ᵖ | 2 |
| Number of reverse dies (r) | 3 | Number of coins (n) | 4 |
| Coins per obverse die (n/o) | 1.33 | Coins per reverse die (n/r) | 1.33 |
| Reverse per obverse ratio (r/o) | 1 | Percentage of singletons (o1) ᵖ | 66.67 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 9.49 | Coins struck if 20,000 as average productivity per die ᵖ | 189,800 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 12 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00002 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 50% | Die productivity if survival rate 1/2,000 ᵖ | 842.99 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ | 740 kg <br /> 740 kg | Die productivity if survival rate 1/5,000 ᵖ | 2,107.48 |
Remarks
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 Histoire monétaire et économique, unpublished doctoral dissertation, Bordeaux University.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 C. - Hoover, Oliver D. (2008), Seleucid coins : a comprehensive catalogue. Part 2, Seleucus IV through Antiochus XIII, 2 v., New York - Lancaster - London, (xxx), 120 p. of plates : ill., maps, tables
