Any Nautical Types Out There?

Hi,

The octant (if thats what it is) has an "ANCHOR" symbol directly above the "50" mid mark of the "scale" (ruler?) ... someone told me today that the "anchor" is a symbol oft used by the U.S, Navy ...

G's family arrived this neck of the world as United Empire Loyalists at Albany (NY?) (from England) and migrated here to Upper Canada ... his Grandfather/G-Grandfather??? is said to have used this particular instrument ... therefore, we're taking 1800's.

(Geoff, please correxct any mistakes I made in your family's history)

The ANCHOR symbol, I think, is signifigant, and may well be the biggest clue as to maker, date-range, and value now.

Can anyone shed light on any of this for Geoff???

Thanks folks,