S 991 - Alexandria (Ptolemy IV), silver, tetradrachms (219-215 BCE)

From SILVER
SILVER IDUnique ID of the page : 8962


219 BCE - 215 BCE Silver 7,199 kg

Description
ObverseInscription or printing placed on the obverse.: Jugate busts to right of Serapis, laureate, bearded and draped, and Isis, crowned, diademed and draped
ReverseInscription or printing placed on the reverse.: ΒΑΣΙΛΕΩΣ ΠΤΟΛΕΜΑΙΟΥ (Greek).Eagle with closed wings standing on thunderbolt to left, his head turned back to right, with cornucopiae at his shoulder, between eagle's legs, ΔΙ
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 IV Philopator (Ptolemaic king, 221-205 BC)
Chronology
FromIdentifies the initial date in a range assigned in a numismatic context. 219 BCE toIdentifies the final date in a range assigned in a numismatic context.. 215 BCE PeriodTime period of the numismatic object.: Hellenistic 323-30 BC Nomisma.org
Physical description
MetalThe physical material (usually metal) from which an object is made.: Silver Nomisma.org Median weightMedian of the weights of numismatic objects (in grams). in grams 14.20 DenominationTerm indicating the value of a numismatic object. Examples: tetradrachm, chalkous, denarius.: tetradrachm Nomisma.org StandardStandard.: Ptolemaic
Image
S991 Alexandria Ptolemy IV Landvatter.jpg [1]
References
Die study referencePublication of the study: Landvatter 20121Landvatter 2012, p. 63-72 (Groups 1-5)
Coin series referenceReference to coin series study: CPE I2CPE I, n° 892



Obverse dies distribution
FrequencyFrequency of specimen in distribution.  Number of obversesNumber of obverse dies.  (o) % (o) Number of coinsNumber of coins. (n) % (n) Die nameName(s) of the die(s).
1 3 13.04 3 2.5 14, 21, 22
2 4 17.39 8 6.67 6, 11, 16, 20
3 5 21.74 15 12.5 2, 5, 13, 15, 18
4 2 8.7 8 6.67 8, 23
5 1 4.35 5 4.17 17
6 3 13.04 18 15 1, 7, 9
7 1 4.35 7 5.83 19
10 1 4.35 10 8.33 3
14 1 4.35 14 11.67 10
15 1 4.35 15 12.5 4
17 1 4.35 17 14.17 12
Total 23 of 23 100.01 120 of 120 100.01
Reverse dies distribution

no distribution is available


Quantification
Number of obversesNumber of obverse dies.  (o) 23 Number of singletons (o1)The number of singleton coins.  3
Number of reverse diesNumber of reverse dies. (r) 65 Number of coinsNumber of coins. (n) 120
Coins per obverse dieNumber of coins per obverse die. (n/o) 5.22 Coins per reverse dieNumber of coins per reverse die. (n/r) 1.85
Reverse per obverse ratioRatio of obverse dies divided by reverse dies. (r/o) 2.83 Percentage of singletons (o1)number of coins (n) divided by the number of singletons (o1)  13.04 %
Original number of dies (O) (Carter 1983 formula)The estimation of the number of coins according to Carter 1983  25.35 Coins struck if 20,000 as average productivity per dieCoins made if the average productivity for obverses (according to Carter) is 20,000.  507,000
Original number of dies (O) (Esty 2011 formula)The estimation of the number of coins according to the singleton formula in Esty 2011  (O) 28.45 Survival rate if 20,000 as average productivity per dieSurvival rate if average productivity is 20,000.  0.00024
Coverage (o = % of O) (Esty 1984 formula)Esty 1984 - coverage (% of O)  (o = % of O) 97.5% Die productivity if survival rate 1/2,000Average productivity if survival rate is 1/2,000.  9,467.46
Weight of silver (in kg) if 20,000 coins per die (O = Carter formula)Carter 1983 * Median weight * 20000 (*10 if gold or electrum)  7,199 kg <br /> 7,199 kg Die productivity if survival rate 1/5,000Average productivity if survival rate is 1/5,000.  23,668.64
Remarks


References

  1. ^  Landvatter, Thomas (2012), "The Serapis and Isis Coinage of Ptolemy IV", American Journal of Numismatic, 24, p. 61-90.
  2. ^  Lorber, Catharine C. (2018), Coins of the Ptolemaic empire : Part I. Ptolemy I through Ptolemy IV, 2 vol., New York.