Erythrae, silver, hemidrachms (Heracles/club and bow in bowcase) (315-310 BCE)
From SILVER
315 BCE - 310 BCE Silver 74 kg
Description
| Obverse: | Head of Heracles left, wearing Nemean lion skin headdress. |
| Reverse: | EPY (Greek).Club and bow-in-bowcase |
Mint and issuing power
| Mint: | Erythrae | Ancient region: | Ionia | Modern country: Turkey | Authority: |
Chronology
| From | 315 BCE | to | 310 BCE | Period: Hellenistic 323-30 BC 
|
Physical description
| Metal: | Silver
|
Median weight in grams | 1.70 | Denomination: | hemidrachm
|
Standard: | Rhodian |
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. 435 (Period III, AR II). | ||
| Coin series reference: | |||
Obverse dies distribution
| Frequency ᵖ | Number of obverses ᵖ (o) | % (o) | Number of coins (n) | % (n) | Die name |
| 3 | 1 | 50 | 3 | 27.27 | 1 |
| 8 | 1 | 50 | 8 | 72.73 | 2 |
| Total | 2 of 2 | 100 | 11 of 11 | 100 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 2 | Number of singletons (o1) ᵖ | 0 |
| Number of reverse dies (r) | 4 | Number of coins (n) | 11 |
| Coins per obverse die (n/o) | 5.5 | Coins per reverse die (n/r) | 2.75 |
| Reverse per obverse ratio (r/o) | 2 | Percentage of singletons (o1) ᵖ | 0 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 2.18 | Coins struck if 20,000 as average productivity per die ᵖ | 43,600 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 2.44 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00025 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 100% | Die productivity if survival rate 1/2,000 ᵖ | 10,091.74 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ | 74 kg <br /> 74 kg | Die productivity if survival rate 1/5,000 ᵖ | 25,229.36 |
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- ^ Kinns, Philip (1980), Studies in the coinage of Ionia: Erythrae, Teos, Lebedus, Colophon, c. 400-30 B.C., unpublished PhD thesis, Cambridge University.
