[nb-NO]Details[nb-NO]

W-323

Cardboard half-circle, a long black thread pierces card at center of its arc. Reverse bears printed: 'Directions for using the protractor, entered according to the act of Congress in 1853'.

Signed on the front: Published by Henry Whipple & Son, Book and Chart Sellers 190 Essex St. Salem, Mass. Marked along the strait edge: Marine-Protractor | William Leavitt. | Navigation School | Salem

cardboard, string

U.S.A

	Imperial(in)		Metric(cm)
Height			8
Width			15
Depth			0.1
Diameter
Circumference

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