Automatic Binding Bricks - LEGO® History - LEGO.com US
Nate Poulin on X: "9/ The big LEGO breakthrough happens when in 1947 Christianson comes across a British toy: "Kiddicraft Self-Locking Building Bricks" Christianson creates his own version of the plastic brick
The 1950... - Unofficial LEGO Sets/Parts Collectors Guide | Facebook