The June 16 Voices of the 20th Century sale at Bonhams will present the prototype for the first home pregnancy test, invented in 1968 by graphic designer and illustrator, Margaret Crane. It is estimated at $6,000 – 9,000. The auction is a special, themed sale that encompasses the political, cultural, and scientific shifts that took place during the tumultuous years between 1900 and 2000. In 1967, Margaret Crane was hired by Organon Pharmaceuticals to work as a freelance graphic designer on a line of cosmetics. On a visit to the Organon laboratory, she saw rows of test tubes that turned out to be pregnancy tests. After carefully examining the tests, and learning that a woman could wait up to two weeks to get her results, Crane

Read More: Margaret Crane’s prototype for first home pregnancy test, the Predictor, appears at auction