Teos, silver, diobols (griffin/lyre) (375-370 BCE)
From SILVER
375 BCE - 370 BCE Silver 127 kg
Description
| Obverse: | Griffin seated right, left forepaw raised. |
| Reverse: | THI (Greek).Lyre |
Mint and issuing power
| Mint: | Teos | Ancient region: | Ionia | Modern country: Turkey | Authority: |
Chronology
| From | 375 BCE | to | 370 BCE | Period: Classical 480-323 BC 
|
Physical description
| Metal: | Silver
|
Median weight in grams | 1.05 | Denomination: | diobol
|
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.]]1Kinns 1980, p. 506 (period I, phase 2, AR III, D11/D13-R1/R3). | ||
| 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 | 2 | 66.67 | 2 | 40 | 12, 13 |
| 3 | 1 | 33.33 | 3 | 60 | 11 |
| Total | 3 of 3 | 100 | 5 of 5 | 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) | 3 | Number of coins (n) | 5 |
| Coins per obverse die (n/o) | 1.67 | Coins per reverse die (n/r) | 1.67 |
| Reverse per obverse ratio (r/o) | 1 | Percentage of singletons (o1) ᵖ | 66.67 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 6.05 | Coins struck if 20,000 as average productivity per die ᵖ | 121,000 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 7.5 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00004 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 60% | Die productivity if survival rate 1/2,000 ᵖ | 1,652.89 |
| Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ | 127 kg <br /> 127 kg | Die productivity if survival rate 1/5,000 ᵖ | 4,132.23 |
Remarks
Most likely one single workstation
References
- ^ Kinns, Philip (1980), Studies in the coinage of Ionia: Erythrae, Teos, Lebedus, Colophon, c. 400-30 B.C., unpublished PhD thesis, Cambridge University.
