Last year, a Welsh woman bought a globe for £150 ($199) at an antique fair. This week, it sold for 770 times that at auction. The globe, believed to be one of the oldest objects of its kind to ...

In 2017, the institution digitized its human-sized, 6- by 7-foot Klencke Atlas—one of the largest in the world. “For all their ‘show’ [globes] can be remarkably elusive objects which are ...