Poor Wilhelmine van der Woerd.
She has not been remembered kindly in our virtual world, even though she is responsible for a very handy invention: the chain guard, patented in 1974! Hardly any mention of her chain guard when you start googling. Just as well she has been given a prominent place among the patent stamps!
Designwise: Note how the original technical drawings for each invention are depicted in the background, in an unobtrusive yet very clear light grey.