Cos, silver, triple sigloi (470-450 BCE)
From SILVER
470 BCE - 450 BCE Silver 6,178 kg
Description
| ObverseInscription or printing placed on the obverse.: | KOΣ ou KΩION (Greek). |
| ReverseInscription or printing placed on the reverse.: |
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. | 470 BCE | toIdentifies the final date in a range assigned in a numismatic context.. | 450 BCE | PeriodTime period of the numismatic object.: Classical 480-323 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 | 16.50 | DenominationTerm indicating the value of a numismatic object. Examples: tetradrachm, chalkous, denarius.: | triple siglos
|
StandardStandard.: | Persian |
References
| Die study referencePublication of the study: | J. P. Barron1J. P. Barron, "The Fifth-Century Diskoboloi of Kos", in C. M. Kraay et G. K. Jenkins (éd.), Essays in Greek Coinage Presented to Stanley Robinson, Oxford, 1968, p. 75-89, pl. 8-10. | ||
| Coin series referenceReference to coin series study: | Sear II2Sear II, n° 4983-4984, RQEMAC3RQEMAC, n° 259 | ||
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 | 7 | 43.75 | 7 | 11.11 | 7, 8, 9, 11, 12, 15, 16 |
| 2 | 2 | 12.5 | 4 | 6.35 | 1, 5 |
| 3 | 2 | 12.5 | 6 | 9.52 | 2, 14 |
| 6 | 2 | 12.5 | 12 | 19.05 | 3, 6 |
| 8 | 1 | 6.25 | 8 | 12.7 | 13 |
| 11 | 1 | 6.25 | 11 | 17.46 | 10 |
| 15 | 1 | 6.25 | 15 | 23.81 | 4 |
| Total | 16 of 16 | 100 | 63 of 63 | 100 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obversesNumber of obverse dies. ᵖ (o) | 16 | Number of singletons (o1)The number of singleton coins. ᵖ | 7 |
| Number of reverse diesNumber of reverse dies. (r) | 16 | Number of coinsNumber of coins. (n) | 63 |
| Coins per obverse dieNumber of coins per obverse die. (n/o) | 3.94 | Coins per reverse dieNumber of coins per reverse die. (n/r) | 3.94 |
| Reverse per obverse ratioRatio of obverse dies divided by reverse dies. (r/o) | 1 | Percentage of singletons (o1)number of coins (n) divided by the number of singletons (o1) ᵖ | 43.75 % |
| Original number of dies (O) (Carter 1983 formula)The estimation of the number of coins according to Carter 1983 ᵖ | 18.72 | Coins struck if 20,000 as average productivity per dieCoins made if the average productivity for obverses (according to Carter) is 20,000. ᵖ | 374,400 |
| 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) | 21.45 | Survival rate if 20,000 as average productivity per dieSurvival rate if average productivity is 20,000. ᵖ | 0.00017 |
| Coverage (o = % of O) (Esty 1984 formula)Esty 1984 - coverage (% of O) ᵖ (o = % of O) | 88.89% | Die productivity if survival rate 1/2,000Average productivity if survival rate is 1/2,000. ᵖ | 6,730.77 |
| 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 | 6,178 kg <br /> 6,178 kg | Die productivity if survival rate 1/5,000Average productivity if survival rate is 1/5,000. ᵖ | 16,826.92 |
Remarks
