Mesembria, bronze 2.65g (helmet/wheel) (325-175 BCE)
From SILVER
325 BCE - 175 BCE Bronze
Description
| Obverse: | Crested Corinthian helmet facing. |
| Reverse: | ΜΕΤΑ (Greek).Wheel surrounded by rays. |
Mint and issuing power
| Mint: | Mesembria | Ancient region: | Thrace | Modern country: Bulgaria | Authority: |
Chronology
| From | 325 BCE | to | 175 BCE | Period: Hellenistic 323-30 BC 
|
Physical description
| Metal: | Bronze
|
Median weight in grams | 2.65 | 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. 152-183. | ||
| 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° 1560 | ||
Obverse dies distribution
| Frequency ᵖ | Number of obverses ᵖ (o) | % (o) | Number of coins (n) | % (n) | Die name |
| 2 | 43 | 22.87 | 86 | 23.63 | 1, 7, 13, 21, 25, 43, 50, 51, 60, 70, 72, 76, 80, 82, 83, 84, 88, 92, 93, 95, 98, 100, 108, 109, 110, 114, 115, 117, 120, 122, 123, 126, 131, 132, 137, 140, 141, 159, 173, 176, 178, 183, 189 |
| 3 | 13 | 6.91 | 39 | 10.71 | 11, 22, 26, 27, 28, 64, 65, 69, 96, 97, 128, 133, 156 |
| 4 | 12 | 6.38 | 48 | 13.19 | 2, 12, 34, 52, 63, 71, 75, 85, 94, 121, 129, 186 |
| 5 | 4 | 2.13 | 20 | 5.49 | 4, 38, 56, 99 |
| 6 | 1 | 0.53 | 6 | 1.65 | 127 |
| 7 | 1 | 0.53 | 7 | 1.92 | 49 |
| 8 | 3 | 1.6 | 24 | 6.59 | 10, 119, 124 |
| 10 | 1 | 0.53 | 10 | 2.75 | 130 |
| 15 | 1 | 0.53 | 15 | 4.12 | 118 |
| 1 | 109 | 57.98 | 109 | 29.95 | 3, 5, 6, 8, 9, 14, 15, 16, 17, 18, 19, 20, 23, 24, 29, 30, 31, 32, 33, 35, 36, 37, 39, 40, 41, 42, 44, 45, 46, 47, 48, 53, 54, 55, 57, 58, 59, 61, 62, 66, 67, 68, 73, 74, 77, 78, 79, 81, 86, 87, 89, 90, 101, 102, 103, 104, 105, 106, 107, 111, 112, 113, 116, 125, 134, 135, 136, 138, 139, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 157, 158, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 174, 175, 177, 179, 180, 181, 182, 184, 185, 187, 188 |
| Total | 188 of 188 | 99.99 | 364 of 364 | 100 |
Reverse dies distribution
no distribution is available
Quantification
| Number of obverses ᵖ (o) | 188 | Number of singletons (o1) ᵖ | 109 |
| Number of reverse dies (r) | 220 | Number of coins (n) | 364 |
| Coins per obverse die (n/o) | 1.94 | Coins per reverse die (n/r) | 1.65 |
| Reverse per obverse ratio (r/o) | 1.17 | Percentage of singletons (o1) ᵖ | 57.98 % |
| Original number of dies (O) (Carter 1983 formula) ᵖ | 315.56 | Coins struck if 20,000 as average productivity per die ᵖ | 6,311,200 |
| Original number of dies (O) (Esty 2011 formula) ᵖ (O) | 388.82 | Survival rate if 20,000 as average productivity per die ᵖ | 0.00006 |
| Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O) | 70.05% | Die productivity if survival rate 1/2,000 ᵖ | 2,307.01 |
| 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 | 5,767.52 |
Remarks
