cross-staffs
Identification code: 300196040
Hierarchy classification:
Additional parents:
Alternative term/s
- cross-staff
- cross-staves
- forestaffs
- jacob's staff
- Jacob's staffs
- Jacob's staves
- staffs, Jacob's
Anotations
Scope note:
Calibrated wooden rods with sliding crosspieces used for measuring the altitude of celestial bodies; forerunnners of modern sextants.
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