Possible Clues:

• Unaided perception
• It can't pick up many distant objects
• Unenhanced vision
• With which to observe what's barely visible?
• View not helped by the presence of bins, perhaps
• Does one barely see with it?
• Patent watch ¾ one having no glass?
• It may not be able to pick up something tiny
• Unassisted sight
• Turns up, person from the university captures Kay and I reportedly without a telescope