Cos, silver, hemidrachms (Asclepius/serpent around staff) (201-200 BCE)
From SILVER
201 BCE - 200 BCE Silver 1,024 kg
Description
| Obverse: | Head of Asklepios laureate. |
| Reverse: | ΚΩΙ (Greek).Serpent entwined around staff, to right, ΑΓΗΣΙΑΣ and Κ, all within reed wreath |
Mint and issuing power
| Mint: | Cos | Ancient region: | Caria (islands) | Modern country: Greece | Authority: |
Chronology
| From | 201 BCE | to | 200 BCE | Period: Hellenistic 323-30 BC 
|
Physical description
| Metal: | Silver
|
Median weight in grams | 2.70 | Denomination: | hemidrachm
|
Standard: |
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.]]1Höghammar 2007, p. 81, pl. 16 (Issue C). | ||
| 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 | 4 | 66.67 | 4 | 50 | 1, 3, 4, 6 |
| 2 | 2 | 33.33 | 4 | 50 | 2, 5 |
| Total | 6 of 6 | 100 | 8 of 8 | 100 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 6 | Number of singletons (o1) ᵖ | 4 |
| Number of reverse dies (r) | 7 | Number of coins (n) | 8 |
| Coins per obverse die (n/o) | 1.33 | Coins per reverse die (n/r) | 1.14 |
| Reverse per obverse ratio (r/o) | 1.17 | Percentage of singletons (o1) ᵖ | 66.67 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 18.97 | Coins struck if 20,000 as average productivity per die ᵖ | 379,400 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 24 | 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 | 843.44 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ | 1,024 kg <br /> 1,024 kg | Die productivity if survival rate 1/5,000 ᵖ | 2,108.59 |
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).
