Cos, silver, hemidrachms (Asclepius/coiled snake) (201-190 BCE)
From SILVER
201 BCE - 190 BCE Silver 419 kg
Description
| Obverse: | Head of Asklepios laureate, right, in circular dotted border. |
| Reverse: | KΩΙΟΝ (nos 1-7) ou ΚΩΙΩΝ (nos 8-9) (Greek).Rearing coiled snake with head raised to right, KΩΙ to left of snake's raised forepart, -ON/ΩΝ to right, name below snake, all in a circular dotted border. |
Mint and issuing power
| Mint: | Cos | Ancient region: | Caria (islands) | Modern country: Greece | Authority: |
Chronology
| From | 201 BCE | to | 190 BCE | Period: Hellenistic 323-30 BC 
|
Physical description
| Metal: | Silver
|
Median weight in grams | 2.30 | Denomination: | hemidrachm
|
Standard: |
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.]]1Höghammar 2007, p. 81-82, pl. 16-17 (Issue D). | ||
| Coin series reference: | |||
| Coin series web reference: | |||
Obverse dies distribution
| Frequency ᵖ | Number of obverses ᵖ (o) | % (o) | Number of coins (n) | % (n) | Die name |
| 1 | 2 | 40 | 2 | 22.22 | 4, 5 |
| 2 | 2 | 40 | 4 | 44.44 | 2, 3 |
| 3 | 1 | 20 | 3 | 33.33 | 1 |
| Total | 5 of 5 | 100 | 9 of 9 | 99.99 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 5 | Number of singletons (o1) ᵖ | 2 |
| Number of reverse dies (r) | 7 | Number of coins (n) | 9 |
| Coins per obverse die (n/o) | 1.8 | Coins per reverse die (n/r) | 1.29 |
| Reverse per obverse ratio (r/o) | 1.4 | Percentage of singletons (o1) ᵖ | 40 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 9.11 | Coins struck if 20,000 as average productivity per die ᵖ | 182,200 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 11.25 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00005 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 77.78% | Die productivity if survival rate 1/2,000 ᵖ | 1,975.85 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ | 419 kg <br /> 419 kg | Die productivity if survival rate 1/5,000 ᵖ | 4,939.63 |
Remarks
Most likely one single workstation
References
- ^ Höghammar, Kerstin (2007), "A Group of Koan Issues from c. 200 BC", Numismatic Chronicle 167, p. 81-82, pl. 16-17 (Issue D).
