About LEGO Universal Building Set Supplemental
The LEGO Universal Building Set Supplemental theme, active from 1969 to 1976, offered additional elements to enhance and expand basic LEGO sets. Key sets include 990-2 Trees and Signs and its earlier variant 990 Trees and Signs, which provided decorative elements to add realism to LEGO creations. The 797 2 Large Baseplates Grey/White set offered foundational pieces for building larger and more stable structures. The 103 4.5V Motor Set with Rubber Tracks introduced motorized movement, allowing builders to create moving vehicles and machines.
1969 LEGO Sets
1969 saw the launch of the DUPLO system, introducing double-sized bricks for preschoolers and opening a new age group for LEGO play. The company’s workforce surpassed 800 employees as sales and exports climbed. Trains advanced with new red spoked wheels, and LEGO Futura—an R&D division focused on concept development—was established in Billund. By this time, LEGO’s shift from cellulose acetate to ABS plastic was nearly complete, ensuring stronger and more colorfast bricks.