Leucas (Roman Republic), silver, didrachms (87 BCE)

SILVER IDUnique ID of the page ^ᵖ: 9686

Silver 6,095 kg

Description

ObverseInscription or printing placed on the obverse.:
ReverseInscription or printing placed on the reverse.:

Mint and issuing power

MintIdentifies the place of manufacture or issue of a numismatic object.:

Leucas

Ancient regionAncient region.:

Acarnania

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:

Chronology

FromIdentifies the initial date in a range assigned in a numismatic context.

toIdentifies the final date in a range assigned in a numismatic context..

PeriodTime period of the numismatic object.: Hellenistic ^{323-30 BC}

Physical description

MetalThe physical material (usually metal) from which an object is made.:

Silver

DenominationTerm indicating the value of a numismatic object. Examples: tetradrachm, chalkous, denarius.:

didrachm

StandardStandard.:

References

Die study referencePublication of the study:	Fr. de Callataÿ1Fr. de Callataÿ, "The Late Hellenistic Didrachms of Leukas: Another Case of Greek Coinage for the Roman Army", in P. G. Van Alfen, G. Bransbourg et M. Amandry (éd.), FIDES. Contributions to Numismatics in Honor of Richard B. Witschonke, New York, 2015, p. 239, pl. 1-7.
Coin series referenceReference to coin series study:

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	10	28.57	10	4.5	5, 6, 7, 8, 13, 14, 19, 21, 29, 35
2	5	14.29	10	4.5	22, 26, 30, 33, 34
3	2	5.71	6	2.7	12, 15
4	2	5.71	8	3.6	11, 32
5	2	5.71	10	4.5	1, 2
6	1	2.86	6	2.7	3
7	2	5.71	14	6.31	16, 27
8	1	2.86	8	3.6	23
9	1	2.86	9	4.05	18
10	2	5.71	20	9.01	10, 28
13	1	2.86	13	5.86	25
14	2	5.71	28	12.61	4, 17
16	1	2.86	16	7.21	9
18	1	2.86	18	8.11	31
21	1	2.86	21	9.46	24
25	1	2.86	25	11.26	20
Total	35 of 35	100	222 of 222	99.98

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	11
Number of reverse diesNumber of reverse dies. (r)	86	Number of coinsNumber of coins. (n)	222
Coins per obverse dieNumber of coins per obverse die. (n/o)	6.34	Coins per reverse dieNumber of coins per reverse die. (n/r)	2.58
Reverse per obverse ratioRatio of obverse dies divided by reverse dies. (r/o)	2.46	Percentage of singletons (o1)number of coins (n) divided by the number of singletons (o1) ^ᵖ	31.43 %
Original number of dies (O) (Carter 1983 formula)The estimation of the number of coins according to Carter 1983 ^ᵖ	37.39	Coins struck if 20,000 as average productivity per dieCoins made if the average productivity for obverses (according to Carter) is 20,000. ^ᵖ	747,800
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)	41.55	Survival rate if 20,000 as average productivity per dieSurvival rate if average productivity is 20,000. ^ᵖ	0.00030
Coverage (o = % of O) (Esty 1984 formula)Esty 1984 - coverage (% of O) ^ᵖ (o = % of O)	95.05%	Die productivity if survival rate 1/2,000Average productivity if survival rate is 1/2,000. ^ᵖ	11,874.83
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	0 kg <br /> 6,095 kg	Die productivity if survival rate 1/5,000Average productivity if survival rate is 1/5,000. ^ᵖ	29,687.08

Remarks

References

^ Fr. de Callataÿ