Alexandria (Ptolemy I), gold, trichrysa (300-285 BCE)
From SILVER
300 BCE - 285 BCE Gold 154,224 kg
Description
| ObverseInscription or printing placed on the obverse.: | Diademed head of Ptolemy I to right, wearing aegis around neck |
| ReverseInscription or printing placed on the reverse.: | ΠΤΟΛΕΜΑΙΟΥ ΒΑΣΙΛΕΩΣ (Greek).Eagle, with closed wings, standing l. on thunderbolt, in l. field, monogram |
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 I Soter (satrap and Ptolemaic king of Egypt, 323-305 BC) |
Chronology
| FromIdentifies the initial date in a range assigned in a numismatic context. | 300 BCE | toIdentifies the final date in a range assigned in a numismatic context.. | 285 BCE | PeriodTime period of the numismatic object.: Hellenistic 323-30 BC 
|
Physical description
| MetalThe physical material (usually metal) from which an object is made.: | Gold
|
Median weightMedian of the weights of numismatic objects (in grams). in grams | 17.85 | DenominationTerm indicating the value of a numismatic object. Examples: tetradrachm, chalkous, denarius.: | trichryson | StandardStandard.: | Ptolemaic |
Image
Alexandria_trichrysa_Ptolemy_I.jpg [1]
References
| Die study referencePublication of the study: | Roche-Lévêque 20231Roche-Lévêque 2023, p. 30-33 | ||
| Coin series referenceReference to coin series study: | CPE I2CPE I, n° 128, 133, 138, 143, 148, 152, 162, 166, 169, 171, 177 | ||
| 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 | 14 | 40 | 14 | 12.28 | 2, 7, 9, 10, 11, 12, 13, 21, 22, 23, 26, 27, 29, 35 |
| 2 | 6 | 17.14 | 12 | 10.53 | 8, 18, 24, 28, 30, 32 |
| 3 | 4 | 11.43 | 12 | 10.53 | 19, 25, 31, 33 |
| 4 | 3 | 8.57 | 12 | 10.53 | 4, 6, 20 |
| 5 | 3 | 8.57 | 15 | 13.16 | 3, 14, 34 |
| 7 | 1 | 2.86 | 7 | 6.14 | 15 |
| 8 | 1 | 2.86 | 8 | 7.02 | 1 |
| 9 | 1 | 2.86 | 9 | 7.89 | 17 |
| 11 | 1 | 2.86 | 11 | 9.65 | 5 |
| 14 | 1 | 2.86 | 14 | 12.28 | 16 |
| Total | 35 of 35 | 100.01 | 114 of 114 | 100.01 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obversesNumber of obverse dies. ᵖ (o) | 35 | Number of singletons (o1)The number of singleton coins. ᵖ | 14 |
| Number of reverse diesNumber of reverse dies. (r) | 65 | Number of coinsNumber of coins. (n) | 114 |
| Coins per obverse dieNumber of coins per obverse die. (n/o) | 3.26 | Coins per reverse dieNumber of coins per reverse die. (n/r) | 1.75 |
| Reverse per obverse ratioRatio of obverse dies divided by reverse dies. (r/o) | 1.86 | Percentage of singletons (o1)number of coins (n) divided by the number of singletons (o1) ᵖ | 40 % |
| Original number of dies (O) (Carter 1983 formula)The estimation of the number of coins according to Carter 1983 ᵖ | 43.2 | Coins struck if 20,000 as average productivity per dieCoins made if the average productivity for obverses (according to Carter) is 20,000. ᵖ | 864,000 |
| 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) | 50.51 | Survival rate if 20,000 as average productivity per dieSurvival rate if average productivity is 20,000. ᵖ | 0.00013 |
| Coverage (o = % of O) (Esty 1984 formula)Esty 1984 - coverage (% of O) ᵖ (o = % of O) | 87.72% | Die productivity if survival rate 1/2,000Average productivity if survival rate is 1/2,000. ᵖ | 5,277.78 |
| 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 | 154,224 kg <br /> 154,224 kg | Die productivity if survival rate 1/5,000Average productivity if survival rate is 1/5,000. ᵖ | 13,194.44 |
Remarks
Most likely one single workstation Likely military
