This astrolable sextant can be used to measure the angle between any two visible objects. It's primary use is to determine the angle between a celestial object and the horizon which is known as the altitude. This doubly reflecting navigation instrument is made of pure brass with antique finish a protective wooden case. antique brass sextant antique brass ship navigation equipment antique brass ship navigation sextant brass antique ship navigation sextant antique ship navigation brass sextant SIZE SPECIFICATION Product Dimension: 12 X 11 X 6 cm | Wooden Box Dimension: 15 X 15 X 8 cm. Material: Brass | Finish: Antique USE This working sextant instrument is a memorable navy gift for birthdays, anniversaries, valentine's day corporate functions. A great gift for maritime, nautical, hiking outdoor enthusiast HOME DECOR This celestial navigation compass for sailors is an essential nautical decor to welcome your boy friend, daddy loved ones with nautical parties. Adapts any special occasions like nautical baby shower . PERFECT GIFT Perfect For Any Nautical Collection Best Gift For Your Family And Friends. Additional Details ------------------------------ Bullet point: ?? SEXTANT : This astrolabe sextant can be used to measure the angle between any two visible objects. It's primary use is to determine the angle between a celestial object and the horizon which is known as the altitude. This doubly reflecting navigation instrument is made of pure brass with antique finish a protective wooden case. INCLUDES TWO ADDITIONAL SIGHTING TELESCOPES. Product description: This astrolable sextant can be used to measure the angle between any two visible objects. It's primary use is to determine the angle between a celestial object and the horizon which is known as the altitude. This doubly reflecting navigation instrument is made of pure brass with antique finish a protective wooden case. antique brass sextant antique brass ship navigation equipment antique brass ship navigation sextant brass antique ship navigation sextant antique ship navigation brass sextant SIZE SPECIFICATION Product Dimension: 12 X 11 X 6 cm | Wooden Box Dimension: 15 X 15 X 8 cm. Material: Brass | Finish: Antique USE This working sextant instrument is a memorable navy gift for birthdays, anniversaries, valentine's day corporate functions. A great gift for maritime, nautical, hiking outdoor enthusiast HOME DECOR This celestial navigation compass for sailors is an essential nautical decor to welcome your boy friend, daddy loved ones with nautical parties. Adapts any special occasions like nautical baby shower . PERFECT GIFT Perfect For Any Nautical Collection Best Gift For Your Family And Friends.