Volvelle
late 17th century
Unknown, Artist
p82r
height (drawing): 116mm
width (drawing): 120mm
width (drawing): 120mm
Hand-drawn volvelle with two revolving discs. Floral sketches in the corner. Part of a French manuscript entitled 'Montue Chritique et Medicinale'. The original cord and pasted paper to strengthen the volvelle can be seen on the reverse.
Robert Boyle (1627 - 1691, British) , Natural philosopher