Construction and Design
The instrument is constructed from carved applewood, featuring a roughly circular main body and an elongated handle. The handle is characterized by a central openwork section in the shape of a heart, which terminates in a trefoil motif. The overall form is designed for horizontal handling during use.
The surface of the wood bears extensive incised markings and engravings. These markings form the scales necessary for celestial calculation, specifically aligning the device with the temporal data required for nocturnal timekeeping.
Evidence for this section
- “Engraved applewood nocturnal, a maritime device for telling the time at night from the stars.”
- “The disc is in roughly circular form for horizontal holding by a handle with openwork heart-shaped device and trefoil terminal.”
