Cyprus (uncertain mint) (Ptolemy I-II), gold, trichrysa (294-274 BCE)

Die Studies Database

SILVER ID ^ᵖ: 21862

294 BCE - 274BCE Gold 72,078 kg

Description

Obverse:	Diademed head of Ptolemy I right, wearing aegis around neck, small Δ behind ear
Reverse:	BAΣIΛEΩΣ ΠTOΛEMAIOY (Greek).Eagle standing to left on thunderbolt, around, ΣT above monogram in left field

Mint and issuing power

Mint:

Cyprus (uncertain mint)

Ancient region:

Cyprus

Modern country: Greece

Authority:

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

Chronology

From

294 BCE

to

274BCE

Period: Hellenistic 323-30 BC

Physical description

Metal:

Gold

Median weight in grams

17.85

Denomination:

trichryson

Standard:

Ptolemaic

Image

]]Cyprus_uncertain_trichrysa_Ptolemy_I.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. 33-34
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, n° 221, 223, 226, 234, 238
Coin series web reference:	https://numismatics.org/pco/id/cpe.1 1.221 https://numismatics.org/pco/id/cpe.1 1.223 https://numismatics.org/pco/id/cpe.1 1.226 https://numismatics.org/pco/id/cpe.1 1.234 https://numismatics.org/pco/id/cpe.1 1.238

Obverse dies distribution

Frequency ᵖ	Number of obverses ᵖ (o)	% (o)	Number of coins (n)	% (n)	Die name
1	6	40	6	15	36, 37, 41, 45, 47, 49
2	2	13.33	4	10	40, 46
3	4	26.67	12	30	38, 39, 44, 48
5	2	13.33	10	25	43, 70
8	1	6.67	8	20	42
Total	15 of 15	100	40 of 40	100

Reverse dies distribution

no distribution is available

Quantification

Number of obverses ᵖ (o)	15	Number of singletons (o1) ᵖ	6
Number of reverse dies (r)	27	Number of coins (n)	40
Coins per obverse die (n/o)	2.67	Coins per reverse die (n/r)	1.48
Reverse per obverse ratio (r/o)	1.8	Percentage of singletons (o1) ᵖ	40 %
Original number of dies (O) (Carter 1983 formula) ᵖ	20.19	Coins struck if 20,000 as average productivity per die ᵖ	403,800
Original number of dies (O) (Esty 2011 formula) ᵖ (O)	24	Survival rate if 20,000 as average productivity per die ᵖ	0.00010
Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O)	85%	Die productivity if survival rate 1/2,000 ᵖ	3,962.36
Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ	72,078 kg <br /> 72,078 kg	Die productivity if survival rate 1/5,000 ᵖ	9,905.89

Remarks

Most likely one single workstation Likely military