Iasus, bronze, chalkous (1.5g) (Apollo/shrimp & shell) (350-300 BCE)

Die Studies Database

SILVER ID ^ᵖ: 8882

350 BCE - 300 BCE Bronze

Description

Obverse:	Head of Apollo left or right, wearing laurel wreath.
Reverse:	IA (Greek).Shrimp above shell.

Mint and issuing power

Mint:

Iasus

Ancient region:

Caria

Modern country: Turkey

Authority:

Chronology

From

350 BCE

to

300 BCE

Period: Classical 480-323 BC

Physical description

Metal:

Bronze

Median weight in grams

1.50

Denomination:

chalkous

Standard:

Image

]]Iasus bronze Apollo shell & shrimp.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.]]1Ashton 2007, p. 54
Coin series reference:
Coin series web reference:	https://greekcoinage.org/iris/id/iasos ashton 2007 pl.7.22-8 http://hno.huma-num.fr/browse?idType=1697

Obverse dies distribution

Frequency ᵖ	Number of obverses ᵖ (o)	% (o)	Number of coins (n)	% (n)	Die name
1	1	25	1	8.33	3
3	1	25	3	25	2
4	2	50	8	66.67	1, 4
Total	4 of 4	100	12 of 12	100

Reverse dies distribution

no distribution is available

Quantification

Number of obverses ᵖ (o)	4	Number of singletons (o1) ᵖ	1
Number of reverse dies (r)	7	Number of coins (n)	12
Coins per obverse die (n/o)	3	Coins per reverse die (n/r)	1.71
Reverse per obverse ratio (r/o)	1.75	Percentage of singletons (o1) ᵖ	25 %
Original number of dies (O) (Carter 1983 formula) ᵖ	5.09	Coins struck if 20,000 as average productivity per die ᵖ	101,800
Original number of dies (O) (Esty 2011 formula) ᵖ (O)	6	Survival rate if 20,000 as average productivity per die ᵖ	0.00012
Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O)	91.67%	Die productivity if survival rate 1/2,000 ᵖ	4,715.13
Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ	n.a.	Die productivity if survival rate 1/5,000 ᵖ	11,787.82

Remarks

Most likely one single workstation