Optical apparatus and instruments, namely, observation instruments in the nature of telescopic sights [, spy glasses and shortsight glasses ]; instruments containing eyepieces, namely, [ optical glasses, protective glasses, sport glasses, field-glasses, binoculars, telescopes, spectroscopes, ] telescopic sights for firearms; [ field-glasses, binoculars, telescopes, ] telescopic sights for firearms, [ spotting scopes, ] zoom scopes being telescopic sights, reversal scopes being telescopic sigh...