The optics are in pristine condition, as good as any telescope or binocular today. Functionally, it's as good as it was during World War II.
- Fact 1: Spyglasses were used during World War II to track rounds fired from naval warships.
- Fact 2: They were also used to spot enemy ships on the horizon, since radar didn't come into widespread use until after World War II.
- Fact 3: Quartermasters' spyglasses were 16x power, versus Day Officers' spyglasses which were only 10x.
- Fact 4: Quartermasters are navigators, responsible for the equipment, charts, maps, and crew used in navigating the ship.
- Fact 5: The U.S. Navy did not keep records of the serial numbers for spyglasses issued to ships, so it is very difficult to tie a specific spyglass to a specific vessel.