H 153 - Chalcis, silver, octobol, 170-146 BC
From SILVER
170 BCE - 146 BCE Silver 459 kg
Description
| Obverse: | Head of nymph Chalcis r., hair rolled in, wearing pendant earring. |
| Reverse: | XAΛKI (Greek).Eagle standing r. with open wings, fighting snake which he holds with his talons, in field r. |
Mint and issuing power
| Mint: | Chalcis | Ancient region: | Euboea | Modern country: Greece | Authority: |
Chronology
| From | 170 BCE | to | 146 BCE | Period: Hellenistic 323-30 BC 
|
Physical description
| Metal: | Silver
|
Median weight in grams | 5.50 | Denomination: | octobol
|
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.]]1Picard 1979 | ||
| Coin series reference: | "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]2RQEMH, n° 153 | ||
Obverse dies distribution
| Frequency ᵖ | Number of obverses ᵖ (o) | % (o) | Number of coins (n) | % (n) | Die name |
| 1 | 1 | 25 | 1 | 3.23 | 65/1 |
| 7 | 1 | 25 | 7 | 22.58 | 60-3/1 |
| 8 | 1 | 25 | 8 | 25.81 | 64/1 |
| 15 | 1 | 25 | 15 | 48.39 | 57-9/1 |
| Total | 4 of 4 | 100 | 31 of 31 | 100.01 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 4 | Number of singletons (o1) ᵖ | 1 |
| Number of reverse dies (r) | 15 | Number of coins (n) | 31 |
| Coins per obverse die (n/o) | 7.75 | Coins per reverse die (n/r) | 2.07 |
| Reverse per obverse ratio (r/o) | 3.75 | Percentage of singletons (o1) ᵖ | 25 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 4.17 | Coins struck if 20,000 as average productivity per die ᵖ | 83,400 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 4.59 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00037 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 96.77% | Die productivity if survival rate 1/2,000 ᵖ | 14,868.11 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ | 459 kg <br /> 459 kg | Die productivity if survival rate 1/5,000 ᵖ | 37,170.26 |
Remarks
Most likely one single workstation
