S 1903 - Oxus (uncertain mint) (Sophytes), silver, didrachms (246-235 BCE)

Die Studies Database

SILVER ID ^ᵖ: 13275

246 BCE - 235 BCE Silver 1,518 kg

Description

Obverse:	Head of Seleukos(?) to right, wearing laurel wreathed Attic helmet decorated with spiral pattern on crest and eagle wings on cheek-guard, MNA on bust truncation
Reverse:	ΣΩΦYΤΟΥ to right (Greek).Cockerel standing to right, kerykeion behind

Mint and issuing power

Mint:

Oxus (uncertain mint)

Ancient region:

Bactria

Modern country: Afghanistan

Authority:

Bactrian Kingdom, Sophytes

Chronology

From

246 BCE

to

235 BCE

Period: Hellenistic 323-30 BC

Physical description

Metal:

Silver

Median weight in grams

8.00

Denomination:

didrachm

Standard:

Attic

Image

]]S1903 Sophytes didrachms Male head.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.]]1Jansari 2018, p. 94
Coin series reference:

Obverse dies distribution

Frequency ᵖ	Number of obverses ᵖ (o)	% (o)	Number of coins (n)	% (n)	Die name
1	2	66.67	2	50	1, 3
2	1	33.33	2	50	2
Total	3 of 3	100	4 of 4	100

Reverse dies distribution

no distribution is available

Quantification

Number of obverses ᵖ (o)	3	Number of singletons (o1) ᵖ	2
Number of reverse dies (r)	2	Number of coins (n)	4
Coins per obverse die (n/o)	1.33	Coins per reverse die (n/r)	2
Reverse per obverse ratio (r/o)	0.67	Percentage of singletons (o1) ᵖ	66.67 %
Original number of dies (O) (Carter 1983 formula) ᵖ	9.49	Coins struck if 20,000 as average productivity per die ᵖ	189,800
Original number of dies (O) (Esty 2011 formula) ᵖ (O)	12	Survival rate if 20,000 as average productivity per die ᵖ	0.00002
Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O)	50%	Die productivity if survival rate 1/2,000 ᵖ	842.99
Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ	1,518 kg <br /> 1,518 kg	Die productivity if survival rate 1/5,000 ᵖ	2,107.48

Remarks