Tesaurus d'Art i Arquitectura Getty Institute 0000-00-00 2024-01-24 15:40:44 en volvelles300247651volvellaevolvellevolvells Any of various reckoning devices consisting of movable discs surmounted by or carrying other graduated or figured circles for calculating, for example, phases of the moon, the time of the rising or setting sun, or the times of the tides; usually made of paper, cardboard, or vellum and often found preprinted in or attached to manuscripts or books of the 13th to the 16th century. volvelle volvelles 2026-03-30 20:44:01