S 755 - Cydonia, silver, hemidrachms (450-330 BCE)
From SILVER
450 BCE - 330 BCE Silver 6,092 kg
Description
| Obverse: | Land tortoise with segmented shell, to right, A. |
| Reverse: | Large square incuse with skew pattern, crescent in one segment |
Mint and issuing power
| Mint: | Cydonia | Ancient region: | Crete | Modern country: Greece | Authority: |
Chronology
| From | 450 BCE | to | 330 BCE | Period: Classical 480-323 BC 
|
Physical description
| Metal: | Silver
|
Median weight in grams | 2.10 | Denomination: | hemidrachm
|
Standard: |
Image
References
| Die study reference: | "[[Die study reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]1Stefanakis 1997, p. 54-56, n° 103-112 and 116-120 (Period I, Group 5, Types J, K, L). | ||
| Coin series reference: | |||
| Coin series web reference: | |||
Obverse dies distribution
| Frequency ᵖ | Number of obverses ᵖ (o) | % (o) | Number of coins (n) | % (n) | Die name |
| 1 | 9 | 47.37 | 9 | 42.86 | |
| 2 | 3 | 15.79 | 6 | 28.57 | |
| 6 | 1 | 5.26 | 6 | 28.57 | |
| Total | 13 of 19 | 68.42 | 21 of 21 | 100 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 19 | Number of singletons (o1) ᵖ | 9 |
| Number of reverse dies (r) | 15 | Number of coins (n) | 21 |
| Coins per obverse die (n/o) | 1.11 | Coins per reverse die (n/r) | 1.4 |
| Reverse per obverse ratio (r/o) | 0.79 | Percentage of singletons (o1) ᵖ | 47.37 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 145.04 | Coins struck if 20,000 as average productivity per die ᵖ | 2,900,800 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 199.5 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00001 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 57.14% | Die productivity if survival rate 1/2,000 ᵖ | 289.58 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ | 6,092 kg <br /> 6,092 kg | Die productivity if survival rate 1/5,000 ᵖ | 723.94 |
Remarks
Most likely one single workstation
References
- ^ Stefanakis, Manolis. I (1997), Studies in the coinages of Crete with particular reference to Kydonia [Unpublished doctoral dissertation], London University.
