Citations › Citation ID: 37

C37. BOOK: Jens Andersen, The LEGO Story: How a Little Toy Sparked the World’s Imagination (Mariner, 2022), p. 113.

...they decided to limit the new LEGO System products to some cyclists, a motorbike, a scooter, and a moped, as well as various flags that would create more life and movement on the town plan, which was also significantly improved and turned into a rigid, foldable plate. One half of the back was devoted to an image of the entire LEGO System range: thirty-eight elements in all, plus cars, flags, trees and so on.

In 1955, there were only thirty-eight unique LEGO parts.

Based on this source image - https://brickset.com/sets/200-4, it looks like both colors of each part were not included in the image, so it should have said unique parts, not elements.