Mathematical Model – Concave and Stellated Icosahedra

Coxeter Collection · Mathematics

Accession Number: 2016.mat.16


A wooden model of concentric concave and stellated icosahedra. The latter is modeled in lighter-coloured wood, the former in darker-coloured wood. The model has a spiky appearance.

Primary Materials: Wood

Dimensions (cm): Longest dimension = 24 cm

Function: Pedagogical mathematical model.

Condition: Excellent

Manufacturer: Bob Rollings, Toronto

Date of Manufacture: 2007