Capua (Campanian mercenaries), silver, didrachms (Athena/man-head bull) (415-400 BCE)
From SILVER
415 BCE - 400 BCE Silver 913 kg
Description
| Obverse: | Head of Athena r., wearing crested Athenian helmet decorated with olive wreath. |
| Reverse: | KAMΠANON (Greek).Man-headed bull walking l. |
Mint and issuing power
| Mint: | Capua | Ancient region: | Campania | Modern country: Italy | Authority: | Campanian mercenaries |
Chronology
| From | 415 BCE | to | 400 BCE | Period: Classical 480-323 BC 
|
Physical description
| Metal: | Silver
|
Median weight in grams | 7.20 | Denomination: | didrachm
|
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.]]1Campana 2010b, p. 42-49 | ||
| Coin series reference: | "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]2HN Italy, n° 477-478 | ||
| Coin series web reference: | |||
Obverse dies distribution
| Frequency ᵖ | Number of obverses ᵖ (o) | % (o) | Number of coins (n) | % (n) | Die name |
| 2 | 2 | 33.33 | 4 | 9.76 | 7, 8 |
| 3 | 1 | 16.67 | 3 | 7.32 | 4 |
| 7 | 1 | 16.67 | 7 | 17.07 | 6 |
| 10 | 1 | 16.67 | 10 | 24.39 | 5 |
| 17 | 1 | 16.67 | 17 | 41.46 | 3 |
| Total | 6 of 6 | 100.01 | 41 of 41 | 100 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 6 | Number of singletons (o1) ᵖ | 0 |
| Number of reverse dies (r) | 8 | Number of coins (n) | 41 |
| Coins per obverse die (n/o) | 6.83 | Coins per reverse die (n/r) | 5.13 |
| Reverse per obverse ratio (r/o) | 1.33 | Percentage of singletons (o1) ᵖ | 0 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 6.34 | Coins struck if 20,000 as average productivity per die ᵖ | 126,800 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 7.03 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00032 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 100% | Die productivity if survival rate 1/2,000 ᵖ | 12,933.75 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ | 913 kg <br /> 913 kg | Die productivity if survival rate 1/5,000 ᵖ | 32,334.38 |
Remarks
Most likely one single workstation Likely military
