Automatic Binding Bricks Small Brick Set (Lego Mursten)

The Automatic Binding Bricks small brick set, produced under the Mursten brand in 1949, represents the earliest iteration of the plastic construction toys that would eventually become the Lego System. Developed by the Lego company in Billund, Denmark, these bricks were inspired by the self-locking building blocks previously designed by British toymaker Hilary Fisher Page. The Danish design team adapted the concept, refining the molding process and material composition to create a more versatile and durable product for the post-war European market.

These early sets were notable for their minimalist packaging and the technical design of the bricks, which featured hollow undersides and lacked the internal tubes found in later iterations, making the connections less stable than modern counterparts. They were initially met with modest interest, as retailers and parents remained skeptical of plastic toys compared to the traditional wood and metal building sets of the era. However, the design established the modular geometry that would define the company's identity and shift global toy production toward standardized, interlocking plastic components.