AC 53a - Gela, silver, didrachms (420-415 BCE)

From SILVER
SILVER IDUnique ID of the page : 7927


420 BCE - 415 BCE Silver 168 kg

Description
ObverseInscription or printing placed on the obverse.: Rider galloping right, wearing Phrygian helmet, short chiton and chlamys, hurling javelin from upraised right hand.
ReverseInscription or printing placed on the reverse.: ΓΕΛAΣ (Greek).Forepart of man-headed bull (the river-god Gelas) left.
Mint and issuing power
MintIdentifies the place of manufacture or issue of a numismatic object.: Gela 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:
Chronology
FromIdentifies the initial date in a range assigned in a numismatic context. 420 BCE toIdentifies the final date in a range assigned in a numismatic context.. 415 BCE PeriodTime period of the numismatic object.: Classical 480-323 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 8.40 DenominationTerm indicating the value of a numismatic object. Examples: tetradrachm, chalkous, denarius.: didrachm Nomisma.org StandardStandard.: Attic
Image
AC 53a - Gela, silver, didrachm, 420-415 BC.jpg [1]
References
Die study referencePublication of the study: Jenkins 19701Jenkins 1970, p. 263-264, n° 479 (groupe VIII).
Coin series referenceReference to coin series study: Sear I2Sear I, n° 802
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).
13 1 100 13 100 93
Total 1 of 1 100 13 of 13 100
Reverse dies distribution

no distribution is available


Quantification
Number of obversesNumber of obverse dies.  (o) 1 Number of singletons (o1)The number of singleton coins. 
Number of reverse diesNumber of reverse dies. (r) 1 Number of coinsNumber of coins. (n) 13
Coins per obverse dieNumber of coins per obverse die. (n/o) 13 Coins per reverse dieNumber of coins per reverse die. (n/r) 13
Reverse per obverse ratioRatio of obverse dies divided by reverse dies. (r/o) 1 Percentage of singletons (o1)number of coins (n) divided by the number of singletons (o1)  %
Original number of dies (O) (Carter 1983 formula)The estimation of the number of coins according to Carter 1983  1 Coins struck if 20,000 as average productivity per dieCoins made if the average productivity for obverses (according to Carter) is 20,000.  20,000
Original number of dies (O) (Esty 2011 formula)The estimation of the number of coins according to the singleton formula in Esty 2011  (O) 1.08 Survival rate if 20,000 as average productivity per dieSurvival rate if average productivity is 20,000.  0.00065
Coverage (o = % of O) (Esty 1984 formula)Esty 1984 - coverage (% of O)  (o = % of O) % Die productivity if survival rate 1/2,000Average productivity if survival rate is 1/2,000.  26,000
Weight of silver (in kg) if 20,000 coins per die (O = Carter formula)Carter 1983 * Median weight * 20000 (*10 if gold or electrum)  168 kg <br /> 168 kg Die productivity if survival rate 1/5,000Average productivity if survival rate is 1/5,000.  65,000
Remarks

Most likely one single workstation

References

  1. ^  Jenkins, Gilbert Kenneth (1970), The Coinage of Gela, AMUGS II, 2 vol., Berlin
  2. ^  Sear, David R. (1978), Greek coins and their values. Vol. I, Europe, London, xl, 316 p.