The Bronze Pocket Sextant measures 4.25" x 4.25" x 2.25". Charming pocket sextant as used by Victorian explorers and surveyors. Intricate and semi-functional, it has all the pieces needed to shoot the sun. A sextant defined latitude. A clock defined longitude. Defining the angle of the Sun and Stars with the horizon was an important way to navigate and survey. A beautiful intricate little instrument with an interesting and ancient history.