The original model of the myoglobin molecule, (the first ever to be made of protein molecule) constructed in plasticine in 1957 by Dr. J.C. (later Sir John) Kendrew; the contorted cylindrical shape, showing the track of polypeptide chain, is supported by wooden rods protruding from a pegboard base; an attached label reads "Medical Research/ Laboratory of Molecular Biology/Cambridge"; dimensions of base 18" x 1 1/2"; overall height 8 1/2"

Made in 1957, this plasticine model of myoglobin was the first model ever made showing the structure of a protein molecule. In 1957 Dr John Kendrew and his colleagues successfully interpreted a detailed X-Ray analysis of myoglobin crystals and were able to propose a tentative structure of a protein molecule for the first time.

As a result of his work on myoglobin Dr Kendrew was awarded the Nobel prize for Chemistry in 1962, alongside Dr M F Perutz who pioneered work in X-Ray crystallography of haemoglobin.