S 680 - Alexandria (Ptolemy IX), silver, tetradrachms (89-81 BCE)
From SILVER
89 BCE - 81 BCE Silver 4,695 kg
Description
| Obverse: | Diademed head of Ptolemy I right, wearing aegis around neck |
| Reverse: | BAΣIΛEΩΣ ΠTOΛEMAIOY (Greek).Eagle standing left on thunderbolt, L KΘ (date) to left, ΠA to right |
Mint and issuing power
| Mint: | Alexandria | Ancient region: | Egypt | Modern country: Egypt | Authority: | Ptolemaic dynasty (323-30 BC), Ptolemy IX Soter II (Ptolemaic king, 116-110, 109-107 and 88-81 BC) |
Chronology
| From | 89 BCE | to | 81 BCE | Period: Hellenistic 323-30 BC 
|
Physical description
| Metal: | Silver
|
Median weight in grams | 14.10 | Denomination: | tetradrachm
|
Standard: | Ptolemaic |
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.]]1Olivier 2012, p. 250, n° 6394-6410 | ||
| Coin series reference: | |||
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 9 | Number of singletons (o1) ᵖ | 6 |
| Number of reverse dies (r) | 15 | Number of coins (n) | 16 |
| Coins per obverse die (n/o) | 1.78 | Coins per reverse die (n/r) | 1.07 |
| Reverse per obverse ratio (r/o) | 1.67 | Percentage of singletons (o1) ᵖ | 66.67 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 16.65 | Coins struck if 20,000 as average productivity per die ᵖ | 333,000 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 20.57 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00005 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 62.5% | Die productivity if survival rate 1/2,000 ᵖ | 1,921.92 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ | 4,695 kg <br /> 4,695 kg | Die productivity if survival rate 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 Etude de numismatique et d'histoire, [Unpublished doctoral dissertation], Orléans University, 2012.
