Binoculars; Monoculars; Telescopes; Body-tubes for telescopes; Equatorial telescopes; Hunting binoculars; Lenses for telescopes; Meridian transit telescopes; Optical or telescopic lens sights; Prisms; Protective lens covers for telescopic gun sights; Reflecting telescopes; Reflectors for telescopes; Telescopic gun sights; Tripods; Zenith telescopes