Quadrant CapuchinThe Quadrant goes back to the 15th century. This model is a sea going, local hour quadrant of a type called a clinometer. These measure the solar height by the angle that the plumb string makes with respect to a vertical line that starts at zero degrees on a graduated scale. Fashioned of brass with wooden base with cotton plumb line with brass pearl. Max Height: 4. 33" Width: 3. 15" Thickness: 0. 16"