Mesembria, bronze 4.90g (helmet/shield) (245-215 BCE)
From SILVER
245 BCE - 215 BCE Bronze
Description
| Obverse: | Crested Corinthian helmet with cheek-pieces left or right. |
| Reverse: | ΜΕΤΑΜΒΡΙΑΝΩΝ (Greek).Celtic shield. |
Mint and issuing power
| Mint: | Mesembria | Ancient region: | Thrace | Modern country: Bulgaria | Authority: |
Chronology
| From | 245 BCE | to | 215 BCE | Period: Hellenistic 323-30 BC 
|
Physical description
| Metal: | Bronze
|
Median weight in grams | 4.93 | Denomination: | 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.]]1Karayotov 2009, p. 190-201. | ||
| Coin series reference: | "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]2HGC 3.2, n° 1571 | ||
Obverse dies distribution
| Frequency ᵖ | Number of obverses ᵖ (o) | % (o) | Number of coins (n) | % (n) | Die name |
| 1 | 18 | 43.9 | 18 | 16.82 | 7, 17, 18, 20, 21, 22, 23, 28, 29, 31, 32, 34, 36, 37, 38, 39, 40, 41 |
| 2 | 10 | 24.39 | 20 | 18.69 | 6, 8, 11, 15, 19, 25, 26, 30, 33, 35 |
| 3 | 4 | 9.76 | 12 | 11.21 | 3, 13, 16, 24 |
| 4 | 2 | 4.88 | 8 | 7.48 | 2, 5 |
| 5 | 2 | 4.88 | 10 | 9.35 | 4, 9 |
| 6 | 2 | 4.88 | 12 | 11.21 | 10, 14 |
| 8 | 1 | 2.44 | 8 | 7.48 | 27 |
| 9 | 1 | 2.44 | 9 | 8.41 | 12 |
| 10 | 1 | 2.44 | 10 | 9.35 | 1 |
| Total | 41 of 41 | 100.01 | 107 of 107 | 100 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 41 | Number of singletons (o1) ᵖ | 18 |
| Number of reverse dies (r) | 65 | Number of coins (n) | 107 |
| Coins per obverse die (n/o) | 2.61 | Coins per reverse die (n/r) | 1.65 |
| Reverse per obverse ratio (r/o) | 1.59 | Percentage of singletons (o1) ᵖ | 43.9 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 55.81 | Coins struck if 20,000 as average productivity per die ᵖ | 1,116,200 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 66.47 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00010 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 83.18% | Die productivity if survival rate 1/2,000 ᵖ | 3,834.44 |
| 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 | 9,586.1 |
Remarks
