Inside the Mint
Many of the mints operated several different workshops (or officina) which can be identified from the Latin and Greek letters added to the mint name. PTR = Prima/first workshop of TRier mint. The following table shows how the workshops are numbered:
| Greek | Latin | English |
|---|---|---|
| A / α alpha | P prima | 1 |
| B / β beta | S secunda | 2 |
| Γ / γ gamma | T tertia | 3 |
| Δ / δ delta | Q quarta | 4 |
| Ε/ ε epsilon | - |
5 |
| Σ/ σ sigma | - |
6 |
| Ζ / ζ zeta | - |
7 |
| Η / η eta | - |
8 |
| Θ / θ theta | - |
9 |
| Ι / ι iota | - |
10 |
| ΙΑ iota alpha | - |
11 |
| ΙΒ iota beta | - |
12 |
The following letters were sometimes added to the mint abbreviation:
Initials |
Latin |
Translation |
|---|---|---|
| SM | Sacra Moneta | The Sacred Mint |
| Comment: Hence SMH is the Sacred mint of Heraclea. | ||
| PS | Pusulatum | Pure Silver |
| OB | Obryziacum | Pure Gold |
| Comment: These appear on late Roman silver and gold respectively. | ||
| COM | Comitatus | The Imperial Court |
| Comment: Normally appears with OB meaning pure gold of the Imperial Court (COMOB). This form appears on Late Roman gold. | ||
The following symbols or issue marks also appear:
| Branch |
Wreath |
Crescent |
 |
 |
 |
Dot |
Star |
Chi-Rho Χ-Ρ |
 |
 |
 |
'Club' - ♣ |
'Spade' - ♠ |
|
 |
 |
