Tyre (Ptolemy II), gold, trichrysa (Ptolemy I/eagle on thunderbolt) (275-274 BCE)

Die Studies Database

SILVER ID ^ᵖ: 21866

275 BCE - 274 BCE Gold 74,863 kg

Description

Obverse:	Diademed head of Ptolemy I to right, wearing aegis around neck
Reverse:	ΠΤΟΛΕΜΑΙΟΥ ΒΑΣΙΛΕΩΣ (Greek).Eagle, with closed wings, standing l. on thunderbolt, in l. field, monogram

Mint and issuing power

Mint:

Tyre

Ancient region:

Phoenicia

Modern country: Lebanon

Authority:

Ptolemaic dynasty (323-30 BC), Ptolemy II Philadelphus (Ptolemaic king, 283-246 BC), Ptolemy I Soter (satrap and Ptolemaic king of Egypt, 323-305 BC)

Chronology

From

275 BCE

to

274 BCE

Period: Hellenistic 323-30 BC

Physical description

Metal:

Gold

Median weight in grams

17.85

Denomination:

trichryson

Standard:

Ptolemaic

Image

]]Tyre_Ptolemy_II_trichrysa.jpg [1]

References

Die study reference:	"[[Die study reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]1Roche-Lévêque 2023, p. 39-41
Coin series reference:	"[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]2CPE I, 551, 553, 555, 557, 559, 560
Coin series web reference:	https://numismatics.org/pco/id/cpe.1 1.551 https://numismatics.org/pco/id/cpe.1 1.553 https://numismatics.org/pco/id/cpe.1 1.555

Obverse dies distribution

Frequency ᵖ	Number of obverses ᵖ (o)	% (o)	Number of coins (n)	% (n)	Die name
1	7	38.89	7	9.72	52, 83, 84, 91, 92, 94, 95
2	1	5.56	2	2.78	90
3	2	11.11	6	8.33	51, 82
4	1	5.56	4	5.56	89
5	4	22.22	20	27.78	87, 88, 93, 97
8	1	5.56	8	11.11	96
12	1	5.56	12	16.67	85
13	1	5.56	13	18.06	86
Total	18 of 18	100.02	72 of 72	100.01

Reverse dies distribution

no distribution is available

Quantification

Number of obverses ᵖ (o)	18	Number of singletons (o1) ᵖ	7
Number of reverse dies (r)	41	Number of coins (n)	72
Coins per obverse die (n/o)	4	Coins per reverse die (n/r)	1.76
Reverse per obverse ratio (r/o)	2.28	Percentage of singletons (o1) ᵖ	38.89 %
Original number of dies (O) (Carter 1983 formula) ᵖ	20.97	Coins struck if 20,000 as average productivity per die ᵖ	419,400
Original number of dies (O) (Esty 2011 formula) ᵖ (O)	24	Survival rate if 20,000 as average productivity per die ᵖ	0.00017
Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O)	90.28%	Die productivity if survival rate 1/2,000 ᵖ	6,866.95
Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ	74,863 kg <br /> 74,863 kg	Die productivity if survival rate 1/5,000 ᵖ	17,167.38

Remarks

Most likely one single workstation Likely military