Erythrae, silver, hemidrachms of Rhodian standard (Heracles/bow in bowcase) (297-294 BCE)
From SILVER
297 BCE - 294 BCE Silver 555 kg
Description
| Obverse: | Head of Heracles left, wearing Nemean lion skin headdress. |
| Reverse: | EPY (Greek).Club and bowcase, [[Reverse description::ΛAΠPEΠH[Σ] and monogram between]] |
Mint and issuing power
| Mint: | Erythrae | Ancient region: | Ionia | Modern country: Turkey | Authority: |
Chronology
| From | 297 BCE | to | 294 BCE | Period: Hellenistic 323-30 BC 
|
Physical description
| Metal: | Silver
|
Median weight in grams | 1.20 | 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.]]1Kinns 1980, p. 438-440 (Period III, AR VI, D11/28-R1/16). | ||
| Coin series reference: | |||
Obverse dies distribution
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 18 | Number of singletons (o1) ᵖ | 5 |
| Number of reverse dies (r) | 16 | Number of coins (n) | 53 |
| Coins per obverse die (n/o) | 2.94 | Coins per reverse die (n/r) | 3.31 |
| Reverse per obverse ratio (r/o) | 0.89 | Percentage of singletons (o1) ᵖ | 27.78 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 23.11 | Coins struck if 20,000 as average productivity per die ᵖ | 462,200 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 27.26 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00011 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 90.57% | Die productivity if survival rate 1/2,000 ᵖ | 4,586.76 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ | 555 kg <br /> 555 kg | Die productivity if survival rate 1/5,000 ᵖ | 11,466.9 |
Remarks
Most likely one single workstation
References
- ^ Kinns, Philip (1980), Studies in the coinage of Ionia: Erythrae, Teos, Lebedus, Colophon, c. 400-30 B.C., unpublished PhD thesis, Cambridge University.
