WK-13-7500 Telescopic Marine Alidade

Using adapter rings to mount the alidade on a compass or gyro-compass indicator, the alidade is primarily intended to be used with the 6” and 7½“ magnetic compass and the 6” and 7 ½” gyro-compass indicator. The nitrogen purged main housing consists of a reticle-equipped, terrestrial telescope for viewing distant objects and an auxiliary optical system for viewing the compass card and the bubble in the level vial. With adapter rings and case.

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