China / 2000
Safe-T 45700 Bullseye Compass
Safe-T 45700 Bullseye Compass
The Smithsonian catalogs Safe-T 45700 Bullseye Compass as compass in its Mathematics records.
WHY IT’S INTERESTING
Like 2000.0160.06, this red and white plastic instrument combines a ruler, a protractor, and a compass. Unlike 2000.0160.06, this object is smaller, white instead of clear, and uses a slide instead of rows of holes for setting the radius of a circle. The semicircular (protractor) end is wider than the rectangular part of the instrument. It is marked in 15-degree increments in both directions, from