- Nocturnal, about 1750
- Boxwood, copper alloy
- H: 27.50 cm, dia.: 10.90 cm (H: 10.8 in, dia.: 4.3 in)
- Gift of Mrs. Alexander O. Vietor, 1981
Marked on the handle: Both Bears (North star corrections)
This is a nocturnal made of boxwood with a brass peep hole at the center. The right side of the handle is broken. Made for both bears, the North correction also for both bears is on the back of the instrument.