| Date | Classification | Piece Code |
|---|---|---|
| 1879 | Design A, Type A | mv20bs-aa |
| 1880 | Design A, Type A | mv20bs-aa |
| 1886 | Design A, Type A | mv20bs-aa |
| 1887 | Design A, Type A | mv20bs-aa |
| 1888 | Design A, Type A | mv20bs-aa |
| 1888/6 | Design A, Type A | mv20bs-aa |
| 1904 | Design A, Type A | mv20bs-aa |
| 1905 | Design A, Type A | mv20bs-aa |
| 1910 | Design A, Type A | mv20bs-aa |
| 1911 | Design A, Type A | mv20bs-aa |
| 1912 | Design A, Type A | mv20bs-aa |
| 1998 | Design B, Type A | mv20bs-ba |
| 1999 | Design B, Type B | mv20bs-bb |
| 2000 | Design C, Type A | mv20bs-ca |
| 2001 | Design C, Type B | mv20bs-cb |
| 2001 | Design C, Type A | mv20bs-ca |
| 2002 | Design C, Type C | mv20bs-cc |
| 2004 | Design C, Type C | mv20bs-cc |