Reminding us of the kind of kids' storybook viewer into which slot circular wheels of film frames, this similar retro feel device likewise features two eyepieces, and indeed two lenses. Where it ...

Question: I have a pair of my great-great-grandmother’s opera glasses. They were given to her by her husband around 1875-1885. The glasses need to be taken apart so the lenses can be cleaned. I am ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The mother of pearl eyecups are ...