S 118 - Aradus (Ptolemy VI), silver, didrachms (180-145 BCE) Mørkholm
From SILVER
180 BCE - 145 BCE Silver 6,237 kg
Description
| Obverse: | Head of Ptolemy I Soter to right, wearing diadem and aegis around neck |
| Reverse: | BAΣΙΛΕΟΣ ΠΤΟΛΕΜΑΙΟΥ (Greek).Eagle standing to left on thunderbolt, date in field |
Mint and issuing power
Chronology
| From | 180 BCE | to | 145 BCE | Period: Hellenistic 323-30 BC 
|
Physical description
| Metal: | Silver
|
Median weight in grams | 7.00 | Denomination: | didrachm
|
Standard: | Ptolemaic |
Image
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References
| Die study reference: | "[[Die study reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]1Mørkholm 1975/1976 | ||
| Coin series reference: | |||
Obverse dies distribution
| Frequency ᵖ | Number of obverses ᵖ (o) | % (o) | Number of coins (n) | % (n) | Die name |
| 1 | 10 | 25 | 10 | 5.08 | |
| 2 | 6 | 15 | 12 | 6.09 | |
| 3 | 2 | 5 | 6 | 3.05 | |
| 4 | 6 | 15 | 24 | 12.18 | |
| 5 | 2 | 5 | 10 | 5.08 | |
| 6 | 2 | 5 | 12 | 6.09 | |
| 7 | 4 | 10 | 28 | 14.21 | |
| 8 | 2 | 5 | 16 | 8.12 | |
| 9 | 1 | 2.5 | 9 | 4.57 | |
| 10 | 1 | 2.5 | 10 | 5.08 | |
| 12 | 2 | 5 | 24 | 12.18 | |
| 16 | 1 | 2.5 | 16 | 8.12 | |
| 20 | 1 | 2.5 | 20 | 10.15 | |
| Total | 40 of 40 | 100 | 197 of 197 | 100 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 40 | Number of singletons (o1) ᵖ | 10 |
| Number of reverse dies (r) | Number of coins (n) | 197 | |
| Coins per obverse die (n/o) | 4.93 | Coins per reverse die (n/r) | |
| Reverse per obverse ratio (r/o) | Percentage of singletons (o1) ᵖ | 25 % | |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 44.55 | Coins struck if 20,000 as average productivity per die ᵖ | 891,000 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 50.19 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00022 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 94.92% | Die productivity if survival rate 1/2,000 ᵖ | 8,844 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ | 6,237 kg <br /> 6,237 kg | Die productivity if survival rate 1/5,000 ᵖ | 22,109.99 |
Remarks
Most likely one single workstation
References
- ^ Mørkholm, Otto (1975/1976), "The Ptolemaic 'Coins of Uncertain Era' ", Nordisk Numismatik Arsskrift, p. 23-58, 8 pl.
