Rhodes, silver, didrachms (facing Helios/rose) (255-250 BCE)
From SILVER
255 BCE - 250 BCE Silver 6,115 kg
Description
ObverseInscription or printing placed on the obverse.: | Radiate head of Helios three-quarter face to right, hair loose in locks |
ReverseInscription or printing placed on the reverse.: | ΡΟΔΙΟΝ (Greek).Rose with bud to right, harpa over EY, border of dots |
Mint and issuing power
MintIdentifies the place of manufacture or issue of a numismatic object.: | Rhodes | Ancient regionAncient region.: | Caria (islands) | Modern countryModern country: Greece | 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: | Rhodian power |
Chronology
FromIdentifies the initial date in a range assigned in a numismatic context. | 255 BCE | toIdentifies the final date in a range assigned in a numismatic context.. | 250 BCE | PeriodTime period of the numismatic object.: Hellenistic ^{323-30 BC} |
Physical description
MetalThe physical material (usually metal) from which an object is made.: | Silver | Median weightMedian of the weights of numismatic objects (in grams). in grams | 6.50 | DenominationTerm indicating the value of a numismatic object. Examples: tetradrachm, chalkous, denarius.: | didrachm | StandardStandard.: | Rhodian |
References
Die study referencePublication of the study: | Ashton 19891 , Ashton 20012 | ||
Coin series referenceReference to coin series study: | Sear II3 , HGC 64 | ||
Coin series web referenceCoin series web references: |
Obverse dies distribution
no distribution is available
Reverse dies distribution
no distribution is available
Quantification
Number of obversesNumber of obverse dies. ^{ᵖ} (o) | 39 | Number of singletons (o1)The number of singleton coins. ^{ᵖ} | |
Number of reverse diesNumber of reverse dies. (r) | Number of coinsNumber of coins. (n) | 137 | |
Coins per obverse dieNumber of coins per obverse die. (n/o) | 3.51 | Coins per reverse dieNumber of coins per reverse die. (n/r) | |
Reverse per obverse ratioRatio of obverse dies divided by reverse dies. (r/o) | Percentage of singletons (o1)number of coins (n) divided by the number of singletons (o1) ^{ᵖ} | % | |
Original number of dies (O) (Carter 1983 formula)The estimation of the number of coins according to Carter 1983 ^{ᵖ} | 47.04 | Coins struck if 20,000 as average productivity per dieCoins made if the average productivity for obverses (according to Carter) is 20,000. ^{ᵖ} | 940,800 |
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) | 54.52 | Survival rate if 20,000 as average productivity per dieSurvival rate if average productivity is 20,000. ^{ᵖ} | 0.00015 |
Coverage (o = % of O) (Esty 1984 formula)Esty 1984 - coverage (% of O) ^{ᵖ} (o = % of O) | % | Die productivity if survival rate 1/2,000Average productivity if survival rate is 1/2,000. ^{ᵖ} | 5,824.83 |
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} | 6,115 kg <br /> 6,115 kg | Die productivity if survival rate 1/5,000Average productivity if survival rate is 1/5,000. ^{ᵖ} | 14,562.07 |
Remarks
References
- ^ Ashton, Richard (1989), "A series of Rhodian didrachms from the mid-third century B.C.," The Numismatic Chronicle, 149, p. 1-13.
- ^ Ashton, Richard (2001), "The coinage of Rhodes 408-c.190 BC", in Andrew Meadows and Kirsty Shipton (eds.), Money and its uses in the ancient world, Oxford, Oxford University Press, p. 79-115.
- ^ Sear, David R. (1979), Greek coins and their values. Vol. II, Asia and North Africa, London, xlviii, p. 317-762
- ^ Hoover, Oliver D. (2010), The Handbook of Greek Coinage Series, volume 6 : handbook of coins of the islands: Adriatic, Iionian, Thracian, Aegean, and Carpathian seas (excluding Crete and Cyprus), sixth to first centuries BC, Lancaster, 358 p.