Accession No

1240

Brief Description

ivory sphere for geometrical demonstrations, 18th Century

Origin

Maker

Class

mathematics (?)

Earliest Date

1700

Latest Date

1800

Inscription Date

Material

ivory; wood (boxwood?)

Dimensions

diameter 80mm; total height 84mm

Special Collection

Provenance

Inscription

Description Notes

Ivory sphere with equatorial ring set around it. Various arcs marked on the sphere; three angles marked as ‘a’, ‘b’ and ‘c’.
Cylindrical turned boxwood (?) stand.

Condition good; complete.

References

Events