Molecular model of the structure of vitamin B12, 1957-1959.

Vitamin B12 molecular structure, c 1957-1958.

Vitamin B12 crystal structure model, 1957-1959.

Sperm Whale myoglobin, ball and spoke model, c 1972.

Molecular models, 19th-20th century.

Molecular structure model of insulin, c 1965.

Minit molecular model kit, 1981.

Orbit molecular model kit with booklet, 1981.

Nicholson molecular models with instruction leaflets, 1981.

Molecular modelling kit, 19th-20th century.

Molecular models for demonstration to the visually impaired, 20th century.

Kendrew's original model of the myoglobin molecule, 1957.