Data base description

The data base has been built on a Excel file.

The first page contains all the information of the coins registered:

The name of every coin is composed by its RIC code plus a sequential number.

        Example:
 

Coins restoring DIVO AUGUSTO with eagle on the reverse are referenced as: 77-001, 77-002...
        .
        .

Coins restoring DIVO TRAIANO with pyre on the reverse will be numbered as: 86-001, 86-002.....
        .
        .
In the case of DIVO ALEXANDRO with a pyre, they will be: 98-001, 98-002.....
 
 

Obverse dies are referenced as follows: the name of the emperor restored (2 char.) plus a sequential number.
Ex.: VE01, VE02......VE50

Reverse dies are named by the motive (Aquila, Pyra) plus a sequential number as follows:
Ex.: A001,A002.....    P001,P002.....
The reverse of the hybrids will be referenced as: IM, VA, PA. Depending on their typology.

Partial view of the table for the coins restoring Nerva

Statistical data is automatically calculated when a new coin is included.


Distribution for typologies is also automatically calculated every time we include a new coin 


The estimation of the original dies number is also automatically adjusted with new coins. 
 
Obverse
Type
Emperor		 Total
Coins		 % Reverse
type
Eagle		 % Reverse
type
Pyre		 %
Augusto 318 11%    88 8%    230 13%   
Vespasiano 316 11%    135 13%    181 10%   
Tito 250 9%    93 9%    157 9%   
Nervae 135 5%    39 4%    96 6%   
Traiano 408 15%    132 12%    276 16%   
Hadriano 90 3%    61 6%    29 2%   
Antonino P. 541 19%    133 12%    408 24%   
Marco 98 4%    59 6%    39 2%   
Commodo 231 8%    110 10%    121 7%   
Severo 107 4%    71 7%    36 2%   
Alexandro 304 11%    151 14%    153 9%   
Total 2798 100% 1072 38%    1726 62%   
 
Emperor Coins
Registered		 Diferent
Dies
Known		 Rate
Coins/
Known Dies		 Number of Original Dies
Estimated by Goods' Method
Dies Stand.Dev. Singletons %Known
Augusto 318 69 4,61 72 2 12 96,2%
Vespasiano 316 76 4,16 80 2 15 95,3%
Tito 250 50 5,00 51 1 7 97,2%
Nervae 135 19 7,11 19 1 3 97,8%
Traiano 408 91 4,48 95 2 16 96,1%
Hadriano 90 24 3,75 28 2 12 86,7%
Antonino 541 94 5,76 96 2 14 97,4%
Marco 98 18 5,44 18 1 1 99,0%
Commodo 231 47 4,91 49 1 8 96,5%
Severo 107 19 5,63 20 1 4 96,3%
Alexandro 304 51 5,96 53 1 10 96,7%
Total 2798 558 5,01 579 5 102 96,4%

Related to the data base, a new software is being developed, it builds the die-link trees and makes an accounting of the coins involved in everyone.

This illustration shows part of the main tree which involves the 81% of the coins registered in the data base. Every line referenced a pair of dies and a coin minted with them. The following line references the same information for a coin linked with the precedent one. 

Ex.: Coin 90-010 links by its obverse(AN06) with the coin 89-031, 90-001 y la 90-043. The last one links with 90-034 and 90-082 by its reverse(P096), etc......
This illustration shows a fragment of the main tree which involves the hybrid coins (78-021 y 78-042) with other 730 coins registered. Some of them are shown in the following picture. 

Pictures courtesy of: