| Date | late 15th century |
| Place | France (?) |
| Material | Brass |
| Inventory no. | 49847 |
| Acquisition | Presented by J. A. Billmeir in 1957 |
Back
The back (equatorium) womb shows some faint circles as well as a set of lines dividing the womb into quadrants. It is possible that the maker intended to engrave a set of tables, perhaps the auges of the planets found on the plate.