Description: This clean 20p postage stamp issued by the Royal Mail showcases a grayscale portrait of the brilliant scientist Dorothy Crowfoot Hodgkin. The left half of the composition is dominated by an intricate, sprawling three-dimensional ball-and-stick model mapping out the complex atomic grid structure of penicillin, one of her monumental breakthroughs. Her full name is sharply typeset in teal block lettering across the center, balanced by a minimal silhouette profile of Queen Elizabeth II positioned above the numerical denomination in the upper right quadrant.
Circa: 1996
Condition: MNH
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