Measuring Instrument Once Used by Navigators

This page is the CodyCross answer for the clue below from Treasure Island, Group 1031, Puzzle 4 (Leather Boots).

Question is: Measuring Instrument Once Used by Navigators

and the answer is: ASTROLABE

Word Meaning:

ASTROLABE — An astronomical and navigational instrument for gauging the altitude of the Sun and stars.

Definitions from Wiktionary.

Measuring Instrument Once Used By Navigators - Treasure Island CodyCross Answers | CodyCross Solutions