Case for circular protractor 6 inch
Case for circular protractor 6 inch, by Watkins and Hill, Charing Cross London
Circular protractor 6-inch, engraved "Watkins and Hill Charing Cross London"; divided in degrees and numbered 0 to 360 degrees; in wood case with inlaid brass plate engraved "H.O. ^ 7"
Case for circular protractor 6 inch, by Watkins and Hill, Charing Cross London
Circular protractor 6-inch, engraved "Watkins and Hill Charing Cross London"; divided in degrees and numbered 0 to 360 degrees.