Signedprinted in grey on dark pink label in base of cone: W. M. WELCH SCIENTIFIC COMPANY / WELCH / ESTABLISHED 1880 / 1515 SEDGWICK ST., CHICAGO U.S.A.
FunctionThe model is designed to visually demonstrate geometric principles related to cones and conic sections. In particular, the model may seek to suggest how different conic sections can be made by cutting a cone at different angles.
ProvenanceFrom I.B.Cohen's office in the Harvard University History of Science Department.