Among the many interesting historical globes photographed for Sylvia Sumira’s Globes: 400 Years of Exploration, Navigation, and Power are a few examples of pocket globes. Here is one made around 1715, by Johann Baptist Homann, a German mapmaker working in Nuremberg. It measures 2 ¾ inches in diameter.
This particular pocket globe came in four pieces that nest inside each other like matryoshka dolls. The outside case, made of leather and featuring an S-shaped hook that secured the two pieces together, is lined with concave representations of a celestial map, showing constellations as seen from the earth. (Celestial globes were among the earliest globes produced, and were once commonly sold alongside their terrestrial cousins.)