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M-417

Dip circle and variation compass

An elegant instrument for measuring magnetic dip and deviation. Vertical circle calibrated 90-0-90-0-90° every 1°. Inset plumb line along vertical brass diameter. Pyramidal silver plumb bob. Needle type 58. Vertical circle is hinged to a flat, vertical plate and secured by a thumbscrew. Turning the screw releases the circle, which can then be pivoted into a horizontal position for measuring magnetic deviation. Vertical plate attached to a turned pedestal resting on three feet. Three brass leveling screws with silver leaves on top. Three silver dolphins.

"Macquart A Paris"

brass, silver

France

	Imperial(in)		Metric(cm)
Height			34.7
Width			23.1
Depth			18.2
Diameter
Circumference

	Imperial(in)		Metric(cm)
Height
Width
Depth
Diameter