Sicily (uncertain Ptolemaic mint) (Ptolemy II and Hieron II), bronze (17.5g) (Zeus/eagle on thunderbolt) (264-263 BCE)

From SILVER
SILVER IDUnique ID of the page : 734


264 BCE - 263 BCE Bronze

Description
ObverseInscription or printing placed on the obverse.: Head of Zeus right, wearing laurel wreath.
ReverseInscription or printing placed on the reverse.: Eagle standing on thunderbolt, wings opened. In left field, a Galatian shield. (Border of dots).
Mint and issuing power
MintIdentifies the place of manufacture or issue of a numismatic object.: Sicily (uncertain Ptolemaic mint) Ancient regionAncient region.: Sicily Modern countryModern country: Italy 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: Hieron II of Syracuse (tyrant of Syracuse, 270-215 BC), Ptolemy II Philadelphus (Ptolemaic king, 283-246 BC)
Chronology
FromIdentifies the initial date in a range assigned in a numismatic context. 264 BCE toIdentifies the final date in a range assigned in a numismatic context.. 263 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.: Bronze Nomisma.org Median weightMedian of the weights of numismatic objects (in grams). in grams 17.50 DenominationTerm indicating the value of a numismatic object. Examples: tetradrachm, chalkous, denarius.: obol Nomisma.org StandardStandard.:
Image
Syracuse_Galatian_shield_Ptolemy.jpg [1]
References
Die study referencePublication of the study: Wolf - Lorber 20111Wolf - Lorber 2011
Coin series referenceReference to coin series study: Svoronos 1904-19082Svoronos 1904-1908, n° 610, CPE I3CPE I, n° B288-90
Coin series web referenceCoin series web references:



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 74 93.67 74 86.05 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 36, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79
2 3 3.8 6 6.98 1, 38, 51
3 2 2.53 6 6.98 28, 37
Total 79 of 79 100 86 of 86 100.01
Reverse dies distribution

no distribution is available

Quantification
Number of obversesNumber of obverse dies.  (o) 79 Number of singletons (o1)The number of singleton coins.  74
Number of reverse diesNumber of reverse dies. (r) 82 Number of coinsNumber of coins. (n) 86
Coins per obverse dieNumber of coins per obverse die. (n/o) 1.09 Coins per reverse dieNumber of coins per reverse die. (n/r) 1.05
Reverse per obverse ratioRatio of obverse dies divided by reverse dies. (r/o) 1.04 Percentage of singletons (o1)number of coins (n) divided by the number of singletons (o1)  93.67 %
Original number of dies (O) (Carter 1983 formula)The estimation of the number of coins according to Carter 1983  690.38 Coins struck if 20,000 as average productivity per dieCoins made if the average productivity for obverses (according to Carter) is 20,000.  13,807,600
Original number of dies (O) (Esty 2011 formula)The estimation of the number of coins according to the singleton formula in Esty 2011  (O) 970.57 Survival rate if 20,000 as average productivity per dieSurvival rate if average productivity is 20,000.  0.00001
Coverage (o = % of O) (Esty 1984 formula)Esty 1984 - coverage (% of O)  (o = % of O) 13.95% Die productivity if survival rate 1/2,000Average productivity if survival rate is 1/2,000.  249.14
Weight of silver (in kg) if 20,000 coins per die (O = Carter formula)Carter 1983 * Median weight * 20000 (*10 if gold or electrum)  n.a. Die productivity if survival rate 1/5,000Average productivity if survival rate is 1/5,000.  622.85
Remarks


References

  1. ^  Wolf, Daniel - Lorber, Catharine C. (2022), "The ‘Galatian Shield without 2’ Series of Ptolemaic Bronze Coins," Numismatic Chronicle, 171, p. 7-53, pl. 1-3.
  2. ^  Svoronos, Ioannes N. (1904-1908), Τὰ νομίσματα τοῦ κράτους τῶν Πτολεμαίων (Ta nomismata tou kratous tōn Ptolemaiōn - The coins of the Ptolemaic rulers), Athens, 4 v., 68 pl.
  3. ^  Lorber, Catharine C. (2018), Coins of the Ptolemaic empire : Part I. Ptolemy I through Ptolemy IV, 2 vol., New York.