- - Sextant's predecessor
- - Sextant's forerunner
- - Ancient sea tool primarily getting sailor in position
- - Instrument has a light flashing outside Los Angeles
- - ...or a stable arrangement for old altimeter!
- - it was used for taking altitudes from real boats
- - Instrument formerly used to measure the altitude of stars and planets and as a navigational aid
- - Early navigational aid
- - Old navigational instrument
- - Old navigation instrument
- - Navigation tool
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