This cut and glued tan paper model may be considered as four heptahedra joined about a common center. Each heptahedron has as faces one equilateral triangle, three right triangles, and three quadrilaterals, making for a total sixteen triangular faces and twelve quadrilateral faces.
A mark in pencil on the model reads: Oct-26-1938.
Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.