S 673 - Alexandria, silver, tetradrachm, 155-145 BC

Die Studies Database

SILVER IDUnique ID of the page ^ᵖ: 9673

155 BCE - 145 BCE Silver 13,516 kg

Description

ObverseInscription or printing placed on the obverse.:	Head of Ptolemy I Soter to right, wearing diadem and aegis around neck.
ReverseInscription or printing placed on the reverse.:	ΠΤΟΛΕΜΑΙΟΥ ΣΟΤΗΡΟΣ (Greek).Eagle standing to left on thunderbolt. In field, date.

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:

Ptolemy VI Philometor (Ptolemaic king, 180-145 BC), Ptolemy I Soter (satrap and Ptolemaic king of Egypt, 323-305 BC) - pretended authority (type)

Chronology

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

155 BCE

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

145 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

14.10

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

tetradrachm

StandardStandard.:

Ptolemaic

Image

S 673 - Alexandria Tetradrachm 155-145 BC (Olivier 2012, Planche XLVIII, 4382).png

References

Die study referencePublication of the study:	Olivier 20121Olivier 2012, p. 200-202, no. 4378-4443.
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	17	54.84	17	25.76	D3, D4, D5, D6, D7, D8, D10, D12, D13, D14, D16, D17, D18, D20, D24, D27, D28
2	5	16.13	10	15.15	D2, D15, D19, D22, D30
3	3	9.68	9	13.64	D9, D23, D25
4	4	12.9	16	24.24	D11, D21, D26, D29
7	2	6.45	14	21.21	D1, D31
Total	31 of 31	100	66 of 66	100

Reverse dies distribution

no distribution is available

Quantification

Number of obversesNumber of obverse dies. ᵖ (o)	31	Number of singletons (o1)The number of singleton coins. ᵖ	17
Number of reverse diesNumber of reverse dies. (r)	57	Number of coinsNumber of coins. (n)	66
Coins per obverse dieNumber of coins per obverse die. (n/o)	2.13	Coins per reverse dieNumber of coins per reverse die. (n/r)	1.16
Reverse per obverse ratioRatio of obverse dies divided by reverse dies. (r/o)	1.84	Percentage of singletons (o1)number of coins (n) divided by the number of singletons (o1) ᵖ	54.84 %
Original number of dies (O) (Carter 1983 formula)The estimation of the number of coins according to Carter 1983 ᵖ	47.93	Coins struck if 20,000 as average productivity per dieCoins made if the average productivity for obverses (according to Carter) is 20,000. ᵖ	958,600
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)	58.46	Survival rate if 20,000 as average productivity per dieSurvival rate if average productivity is 20,000. ᵖ	0.00007
Coverage (o = % of O) (Esty 1984 formula)Esty 1984 - coverage (% of O) ᵖ (o = % of O)	74.24%	Die productivity if survival rate 1/2,000Average productivity if survival rate is 1/2,000. ᵖ	2,754.02
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	13,516 kg <br /> 13,516 kg	Die productivity if survival rate 1/5,000Average productivity if survival rate is 1/5,000. ᵖ	6,885.04

Remarks