5/8" x 5/8". Metal binoculars with two Stanhope lenses, all parts c. 1890 but the lenses were not originally these nudes - I found the binoculars empty. I pulled the images from a stash of original never-used, never-sold deadstock nude Stanhope lenses I've been hoarding. In 1859, the first micro-photographic lens was patented. The miniature lens was hidden inside all kinds of regular objects: pens, pipes, needle cases, thimbles... but the way to keep a precious secret close at hand (literally) was to stash it in in a ring or fob. These binoculars have lost their original loop to attach a ring, so I just put an XL Gold Fill one on. One depicts a naked woman playing a violin over another woman's nude body, and the other shows a man spanking(?) a woman's bare butt.