Rii Pocket Sextant J Scott London Nautical Navy Sailors Brass,, Wedding A brass sextant is a beautiful instrument with knobs, slides, vernier scales, mirrors, magnifiers, filters, lens and eye pieces. It?s a real historic instrument that is still in use today. The sextant is the development of an older instrument called a Falstaff which measured the angle of the sun form the length of its shadow but that was always a bit tricky at sea. Indeed the sextant did not come into its own until accurate time could be kept but that?s another story. The primary use of a sextant is to measure the angle between an astronomical object and the horizon for the purposes of celestial navigation. The estimation of this angle, the altitude, is known as sighting or shooting the object, or taking a sight. A sextant is an instrument used to measure the angle between any two visible objects. Its primary use is to determine the angle between a celestial object and the horizon which is known as the altitude. Making this measurement is known as sighting the object, shooting the object, or taking a sight. The angle, and the time when it was measured, can be used to calculate a position line on a nautical or aeronautical chart. A common use of the sextant is to sight the sun at noon to find one's latitude. Its all parts are moving, can be used for basic observation or suitable for collectors and can be a gift for someone. Roorkee sextant is a great companion for any true navigator. This antique sextant looks just like a 100-year-old antique but with a shiny and brand new feel. This great piece of art from Roorkee Instruments India, with proper care and cleaning can accompany you on your adventures for many years to come. A replica from the vintage sailor's time to your Home. Beautifully designed sextant etched with top quality work. This engraved sextant is a best gift for antique collectors. These items are made up of brass not an artificial material. This antique sextant made up of pure brass could be a beautiful addition to your drawing room. PRODUCT FEATURE: It is a great instrument for determining the angle between the horizon and a celestial body. It measures the angle between two objects. It has glass optics for a clear view, no plastic lens is used. In navigation, you look at the horizon through this mirror. Although it is not calibrated. QUALITY PRODUCT: This is a functional brass sextant with brass finish with movable telescope, adjustable mirror, magnifying glass, index arm etc. This brass sextant is made from premium quality Brass. This high-quality jewelled sextant determines Longitude and Latitude. EXCEPTIONAL COLLECTIBLE: This beautifully designed classic brass functional sextant is no less than a piece of art. It enhances your personal vintage, nautical collection. It can be an educational artefact for kids of any age group. It is ideal home decor for adventure, maritime, hiking outdoor enthusiasts and nautical lovers. UNIQUE GIFT ITEM: This working sextant instrument is a memorable gift for birthdays, anniversaries, valentine's day, housewarming party, promotion ceremony, baptism, graduation ceremonies, Thanksgiving, Christmas, friendship?s day, Easter, engagements, weddings, and corporate functions. SIZE AND PACKAGING: This sextant is portable and easy to carry anywhere. Its size is 4.5 x 4.4 x 2.25 inches.