Agrigentum, bronze, onkiai (eagle on fish/crab & fish) (415-406 BCE)

Die Studies Database

SILVER ID ^ᵖ: 10408

415 BCE - 406 BCE Bronze

Description

Obverse:	ΑΚΡΑ (Greek).eagle standing left on fish, head turned to right
Reverse:	Crab, below, fish right above one pellet

Mint and issuing power

Mint:

Agrigentum

Ancient region:

Sicily

Modern country: Italy

Authority:

Chronology

From

415 BCE

to

406 BCE

Period: Classical 480-323 BC

Physical description

Metal:

Bronze

Median weight in grams

3.80

Denomination:

onkia

Standard:

Image

]]S 1509 - Agrigentum, bronze, onkiai (415-406 BCE).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.]]1Westermark 2018, p. 282-287, n° 990-1006
Coin series reference:

Obverse dies distribution

Frequency ᵖ	Number of obverses ᵖ (o)	% (o)	Number of coins (n)	% (n)	Die name
1	1	12.5	1	0.8	8
9	1	12.5	9	7.2	7
12	1	12.5	12	9.6	2
13	2	25	26	20.8	1;6
17	1	12.5	17	13.6	3
25	1	12.5	25	20	4
35	1	12.5	35	28	5
Total	8 of 8	100	125 of 125	100

Reverse dies distribution

no distribution is available

Quantification

Number of obverses ᵖ (o)	8	Number of singletons (o1) ᵖ	1
Number of reverse dies (r)	13	Number of coins (n)	125
Coins per obverse die (n/o)	15.63	Coins per reverse die (n/r)	9.62
Reverse per obverse ratio (r/o)	1.63	Percentage of singletons (o1) ᵖ	12.5 %
Original number of dies (O) (Carter 1983 formula) ᵖ	7.88	Coins struck if 20,000 as average productivity per die ᵖ	157,600
Original number of dies (O) (Esty 2011 formula) ᵖ (O)	8.55	Survival rate if 20,000 as average productivity per die ᵖ	0.00079
Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O)	99.2%	Die productivity if survival rate 1/2,000 ᵖ	31,725.89
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	79,314.72

Remarks