Byzantium, silver, half sigloi (bull on dolphin/incuse square) (340-320 BCE)

Die study reference:	"[[Die study reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]1Schönert-Geiss 1970, n° 236-590.
Coin series reference:	"[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]2Sear I, n° 1582, "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]3RQEMAC, n° 118, "[[Coin series reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]4HGC 3.2, n° 1390
Coin series web reference:	https://www.corpus-nummorum.eu/types/cn.byzantium.1 ed.2

Obverse dies distribution

Frequency ^ᵖ	Number of obverses ^ᵖ (o)	% (o)	Number of coins (n)	% (n)	Die name
1	263	85.11	263	73.26	1, 2, 3, 5, 6, 8, 9, 10, 11, 13, 14, 15, 16, 18, 19, 20, 21, 29, 30, 31, 32, 34, 37, 38, 39, 40, 42, 43, 44, 45, 47, 48, 49, 50, 51, 53, 55, 56, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 69, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 84, 85, 86, 87, 89, 90, 91, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 150, 151, 152, 153, 154, 156, 157, 159, 160, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 210, 211, 212, 213, 214, 215, 216, 217, 219, 220, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 236, 237, 238, 239, 240, 242, 243, 244, 246, 247, 248, 249, 250, 251, 253, 255, 256, 258, 260, 261, 263, 264, 266, 267, 268, 269, 270, 271, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 303, 304, 305, 306, 307, 308, 309
2	43	13.92	86	23.96	4, 7, 12, 17, 22, 23, 24, 25, 26, 27, 28, 33, 35, 41, 46, 52, 54, 64, 68, 70, 83, 88, 92, 107, 131, 155, 158, 161, 176, 187, 209, 218, 221, 235, 241, 245, 252, 254, 256, 259, 262, 272, 302
3	2	0.65	6	1.67	36, 265
4	1	0.32	4	1.11	149
Total	309 of 309	100	359 of 359	100

Reverse dies distribution

no distribution is available

Quantification

Number of obverses ^ᵖ (o)	309	Number of singletons (o1) ^ᵖ	263
Number of reverse dies (r)	348	Number of coins (n)	359
Coins per obverse die (n/o)	1.16	Coins per reverse die (n/r)	1.03
Reverse per obverse ratio (r/o)	1.13	Percentage of singletons (o1) ^ᵖ	85.11 %
Original number of dies (O) (Carter 1983 formula) ^ᵖ	1681.97	Coins struck if 20,000 as average productivity per die ^ᵖ	33,639,400
Original number of dies (O) (Esty 2011 formula) ^ᵖ (O)	2218.62	Survival rate if 20,000 as average productivity per die ^ᵖ	0.00001
Coverage (o = % of O) (Esty 1984 formula) ^ᵖ (o = % of O)	26.74%	Die productivity if survival rate 1/2,000 ^ᵖ	426.88
Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ^ᵖ	80,735 kg <br /> 80,735 kg	Die productivity if survival rate 1/5,000 ^ᵖ	1,067.2

Remarks

References

^ Schönert-Geiss, Edith (1970), Die Münzprägung von Byzantion. Teil 1: Autonome Zeit, Berlin.
^ Sear, David R. (1978), Greek coins and their values. Vol. I, Europe, London, xl, 316 p.
^ Callataÿ, François de (2003), Recueil quantitatif des émissions monétaires archaïques et classiques, Numismatique Romaine, Wetteren, VII + 267 p.
^ Hoover, Oliver D. (2017), Handbook of Coins of Macedon and Its Neighbors. 3. Part 2: Thrace, Skythia, and Taurike, Sixth to First Centuries BC, Lancaster-London, xix, 232 p.