I am afraid that this question has no set answer. Value of anything is determined by model, year of creation, condition and market interest. There are so many different models of sextants, and all are of brass because they encounter salt water, that your question simply has too many variables for even a shot in the dark answer. I can tell you that a simple web search tells me that the value can run from scrap metal prices, to as much as $200 USC. Again, that is determined by age, condition and rarity.
Please try to be more specific in your questions regarding such things.
you can find sextant on history.com
you use a sextant to navigate.
The value depend on the condition of the shotgun. Have is appraised by a gunsmith or advanced collector. The inlet brass wolves are not original but should not significantly degrade the value if they look well done.
you draw a sextant by looking at googler in the images.
Brass not gold. Just the Mint issue uncirculated coins have very small premiums above face value.
No , Global Brass and Copper is now a privately held. The Olin brass group operations are now part of GBC.
Brass
the sextant helped me navagate my way to alaska
It is a mediaeval instrument for measuring the altitude of the sun and other sky objects, now replaced by the sextant.
What condition is it in, That determines the value. BTW they all had Brass Barrels.
The coin is made from a copper alloy not brass and is a very common coin still in circulation today and as only face value.
as sextant consists a graduated circular arc that is of 60 degree so, arc forms one-sixth of a circle ,hence the name sextant