Lego part 4070
Lego part 4070, known in-house as the Erling brick, and to fans as the headlight brick, was the first Lego part to allow SNOT building.
It was designed by Erling Dideriksen, who it was internally named after.
Further reading
Deep dives
- Chapter 6: Everyday Life Daniel Konstanski, The Secret Life of Lego Bricks, 2022, ISBN 978-1-800-18350-6, pp. 132—165
Lego parts: Lego part 4070