The distribution of the brass or copper pieces among the various emperors and empresses is as follows:
| 'First Brass.' | 'Second Brass.' | |||
| Augustus (?) | – | + | 1 | = 1 |
| Nero | 1 | + | 1 | = 2 |
| Vespasian | 1 | + | 27 | = 28 |
| Titus | 5 | + | 5 | = 10 |
| Domitian | 4 | + | 21 | = 25 |
| Uncertain Flavian | – | + | 2 | = 2 |
| Nerva | 1 | + | – | = 1 |
| Trajan | 20 | + | 6 | = 26 |
| Hadrian | 12 | + | 15 | = 27 |
| Sabina | 1 | + | 1 | = 2 |
| Antoninus Pius | 3 | + | 4 | = 7 |
| Faustina Senior | 1 | + | 5 | = 6 |
| Marcus Aurelius | 1 | + | 1 | = 2 |
| Faustina Junior | – | + | 3 | = 3 |
| Totals, | 50 | + | 92 | = 142 |
Hoards of early Imperial brass or copper are rare, but there is fortunately one available which was discovered at Croydon in 1905, and which must have been buried about 180 A.D.[1] Here is a summary of its contents so far as they could be identified:[2]
| Claudius | 1 |
| Nero | 1 |
| Vespasian | 14 |
| Titus | 1 |
| Domitian | 17 |
| Nerva | 10 |
| Trajan | 83 |
| Hadrian | 46 |
| Antoninus Pius | 47 |
| Faustina Senior | 12 |
| Marcus Aurelius | 13 |
| Faustina Junior | 20 |
| Total, | 267 |
It will be seen at a glance that the comparison fully bears out the evidence of the silver; The percentage of pre-Trajanic to later issues is about 49 at Newstead and only 16.5 at Croydon. It will be remembered that, in the case of the silver, the corresponding figures were 56 and 19. The difference between 49 and 56 is due to
1 Described by Mr. F. A. Walters in Num. Chron. 1907, pp. 353 ff.
2 Thirteen specimens were too corroded to be recognisable.
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