Cos, silver, tetradrachms (Heracles/crab & club) (285-258 BCE) Réquier
From SILVER
285 BCE - 258 BCE Silver 4,274 kg
Description
| ObverseInscription or printing placed on the obverse.: | Head of young Herakles right in lion skin headdress |
| ReverseInscription or printing placed on the reverse.: | KΩΙΟΝ (Greek).Crab and and bow in bowcase, all within square with dotted border |
Mint and issuing power
| MintIdentifies the place of manufacture or issue of a numismatic object.: | Cos | Ancient regionAncient region.: | Caria (islands) | Modern countryModern country: Greece | AuthorityIdentifies the issuing power. The authority can be "pretended" when the name or the portrait of X is on the coin but he/she was not the issuing power. It can also be "uncertain" when there is no mention of X on the coin but he/she was the issuing power according to the historical sources: |
Chronology
| FromIdentifies the initial date in a range assigned in a numismatic context. | 285 BCE | toIdentifies the final date in a range assigned in a numismatic context.. | 258 BCE | PeriodTime period of the numismatic object.: Hellenistic 323-30 BC 
|
Physical description
| MetalThe physical material (usually metal) from which an object is made.: | Silver
|
Median weightMedian of the weights of numismatic objects (in grams). in grams | 14.80 | DenominationTerm indicating the value of a numismatic object. Examples: tetradrachm, chalkous, denarius.: | tetradrachm
|
StandardStandard.: |
Image
Cos_tetradrachm_heracles_285_258.jpg [1]
References
| Die study referencePublication of the study: | Réquier 19961Réquier 1996, p. 53-64, pl. 7-12. | ||
| Coin series referenceReference to coin series study: | |||
| Coin series web referenceCoin series web references: | |||
Obverse dies distribution
| FrequencyFrequency of specimen in distribution. ᵖ | Number of obversesNumber of obverse dies. ᵖ (o) | % (o) | Number of coinsNumber of coins. (n) | % (n) | Die nameName(s) of the die(s). |
| 1 | 2 | 14.29 | 2 | 1.68 | |
| 4 | 3 | 21.43 | 12 | 10.08 | |
| 5 | 1 | 7.14 | 5 | 4.2 | |
| 7 | 1 | 7.14 | 7 | 5.88 | |
| 8 | 1 | 7.14 | 8 | 6.72 | |
| 9 | 1 | 7.14 | 9 | 7.56 | |
| 10 | 1 | 7.14 | 10 | 8.4 | |
| 14 | 1 | 7.14 | 14 | 11.76 | |
| 15 | 1 | 7.14 | 15 | 12.61 | |
| 16 | 1 | 7.14 | 16 | 13.45 | |
| 21 | 1 | 7.14 | 21 | 17.65 | |
| Total | 14 of 14 | 99.98 | 119 of 119 | 99.99 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obversesNumber of obverse dies. ᵖ (o) | 14 | Number of singletons (o1)The number of singleton coins. ᵖ | 2 |
| Number of reverse diesNumber of reverse dies. (r) | 57 | Number of coinsNumber of coins. (n) | 119 |
| Coins per obverse dieNumber of coins per obverse die. (n/o) | 8.5 | Coins per reverse dieNumber of coins per reverse die. (n/r) | 2.09 |
| Reverse per obverse ratioRatio of obverse dies divided by reverse dies. (r/o) | 4.07 | Percentage of singletons (o1)number of coins (n) divided by the number of singletons (o1) ᵖ | 14.29 % |
| Original number of dies (O) (Carter 1983 formula)The estimation of the number of coins according to Carter 1983 ᵖ | 14.44 | Coins struck if 20,000 as average productivity per dieCoins made if the average productivity for obverses (according to Carter) is 20,000. ᵖ | 288,800 |
| Original number of dies (O) (Esty 2011 formula)The estimation of the number of coins according to the singleton formula in Esty 2011 ᵖ (O) | 15.87 | Survival rate if 20,000 as average productivity per dieSurvival rate if average productivity is 20,000. ᵖ | 0.00041 |
| Coverage (o = % of O) (Esty 1984 formula)Esty 1984 - coverage (% of O) ᵖ (o = % of O) | 98.32% | Die productivity if survival rate 1/2,000Average productivity if survival rate is 1/2,000. ᵖ | 16,481.99 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula)Carter 1983 * Median weight * 20000 (*10 if gold or electrum) ᵖ | 4,274 kg <br /> 4,274 kg | Die productivity if survival rate 1/5,000Average productivity if survival rate is 1/5,000. ᵖ | 41,204.99 |
Remarks
References
- ^ Réquier, Pierre (1996), "Les premiers tétradrachmes hellénistiques de Cos", Revue Suisse de Numismatique 75, p. 53-64, pl. 7-12.
