Patent Beauty (3)
We're taking a giant leap forward and end up in the 20th century, in the war torn Netherlands of 1943 to be precise.
Willem Kolff uses material such as cellophane and empty food tins to build the world's first artificial kidney. His invention marks the beginning of an era where body parts can be replaced by artificial organs, and is still seen as one of the major inventions in medicine.
Designwise: Note how the colour scheme is consistently chosen from one of the main colours of the illustration in every stamp.