Watch how this amazing #knife unfolds to an #astronomical compendium.

4 plates are engraved with deities and have #calendars on the inside.

Plate 3 outer end: Hinged #silver box with #volvelle inside.

The ivory handle has shallow #carvings including #Adam and #Eve and the Crucifixion.

The box #engraved with the date and various scenes.

Inside: A #miniature #equinoctial dial.

Inside: #miniature equinoctial dial & carvings of Adam and Eve.

Made 1606

https://www.britishmuseum.org/collection/object/H_1855-1201-222

Watch how this amazing #knife unfolds to an #astronomical compendium.

4 plates are engraved with deities and have #calendars on the inside.

Plate 3 outer end: Hinged #silver box with #volvelle inside.

The signature is engraved on a rotating disc.

The ivory handle has shallow #carvings including #Adam and #Eve and the Crucifixion.

The box #engraved with the date and various scenes.

Inside: A #miniature #equinoctial dial.

Inside: #miniature equinoctial dial & carvings of Adam and Eve.

1606