A large and complex molecular teaching model.

English, mid 20th century.

H:48 W:45 D:49 CM

H:18.9 W:17.6 D:19.2 INCHES.

Model of a molecular structure made as an educational aid for classrooms.

The complex structure is formed from colored wooden balls representing atoms connected by metal rods. It has red and gold balls, some of them numbered, made by CSL, Cambridge, England.

Ball and stick models are three-dimensional models where atoms are represented by spheres of different colors and bonds are represented by sticks between the spheres. Particular atoms are associated with different colors, for example, black is usually used to represent carbon and white to represent hydrogen.