Early (1600-1700s) Carved Navigational Sextant Component with Angles and Monogram umbrellas which appear native to it

which appear native to it

including as a conversation piece and engaging group activity

with some light rusting

and seem to be just  a hair larger in size than later iterations

Early (1600-1700s) Carved Navigational Sextant Component with Angles and Monogram umbrellas which appear native to itI really love measuring tools of all sorts, and know there are a few of you out there who do, too and this is such an old one, I could not resist. I am quite sure it is a piece of a navigational instrument, and believe part of a sextant, used to measure the angle between an astronomical object and the horizon for the purposes of celestial navigation. (A moveable arm, probably made of brass, would have attached to the corner from the back.) Really rare