S 680 - Alexandria (Ptolemy IX), silver, tetradrachms (89-81 BCE)
From SILVER
89 BCE - 81 BCE Silver 4,695 kg
Description
| ObverseInscription or printing placed on the obverse.: | Diademed head of Ptolemy I right, wearing aegis around neck |
| ReverseInscription or printing placed on the reverse.: | BAΣIΛEΩΣ ΠTOΛEMAIOY (Greek).Eagle standing left on thunderbolt, L KΘ (date) to left, ΠA to right |
Mint and issuing power
| MintIdentifies the place of manufacture or issue of a numismatic object.: | Alexandria | Ancient regionAncient region.: | Egypt | Modern countryModern country: Egypt | 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: | Ptolemaic dynasty (323-30 BC), Ptolemy IX Soter II (Ptolemaic king, 116-110, 109-107 and 88-81 BC) |
Chronology
| FromIdentifies the initial date in a range assigned in a numismatic context. | 89 BCE | toIdentifies the final date in a range assigned in a numismatic context.. | 81 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 | 14.10 | DenominationTerm indicating the value of a numismatic object. Examples: tetradrachm, chalkous, denarius.: | tetradrachm
|
StandardStandard.: | Ptolemaic |
Image
S680 Ptolemy IX tetradrachm 89-81.jpg [1]
References
| Die study referencePublication of the study: | Olivier 20121Olivier 2012, p. 250, n° 6394-6410 | ||
| Coin series referenceReference to coin series study: | |||
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 | 6 | 66.67 | 6 | 37.5 | 620, 623, 624, 625, 627, 628 |
| 2 | 1 | 11.11 | 2 | 12.5 | 626 |
| 3 | 1 | 11.11 | 3 | 18.75 | 622 |
| 5 | 1 | 11.11 | 5 | 31.25 | 619 |
| Total | 9 of 9 | 100 | 16 of 16 | 100 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obversesNumber of obverse dies. ᵖ (o) | 9 | Number of singletons (o1)The number of singleton coins. ᵖ | 6 |
| Number of reverse diesNumber of reverse dies. (r) | 15 | Number of coinsNumber of coins. (n) | 16 |
| Coins per obverse dieNumber of coins per obverse die. (n/o) | 1.78 | Coins per reverse dieNumber of coins per reverse die. (n/r) | 1.07 |
| Reverse per obverse ratioRatio of obverse dies divided by reverse dies. (r/o) | 1.67 | Percentage of singletons (o1)number of coins (n) divided by the number of singletons (o1) ᵖ | 66.67 % |
| Original number of dies (O) (Carter 1983 formula)The estimation of the number of coins according to Carter 1983 ᵖ | 16.65 | Coins struck if 20,000 as average productivity per dieCoins made if the average productivity for obverses (according to Carter) is 20,000. ᵖ | 333,000 |
| 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) | 20.57 | Survival rate if 20,000 as average productivity per dieSurvival rate if average productivity is 20,000. ᵖ | 0.00005 |
| Coverage (o = % of O) (Esty 1984 formula)Esty 1984 - coverage (% of O) ᵖ (o = % of O) | 62.5% | Die productivity if survival rate 1/2,000Average productivity if survival rate is 1/2,000. ᵖ | 1,921.92 |
| 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 | 4,695 kg <br /> 4,695 kg | Die productivity if survival rate 1/5,000Average productivity if survival rate is 1/5,000. ᵖ | 4,804.8 |
Remarks
References
- ^ Olivier, Julien (2012), Archè et Chrèmata en Egypte au IIe siècle avant J.-C. (204-81 av. J.-C.). Etude de numismatique et d'histoire, [Unpublished doctoral dissertation], Orléans University, 2012.
