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.
1971 LEGO Sets
In 1971, LEGO broadened its audience with new dollhouse and furniture sets aimed at girls, expanding its reach beyond traditional building themes. In Italy, the Minitalia range grew under import restrictions, offering locally produced sets compatible with the LEGO System. The year also introduced the 1×8×2 arch brick, adding architectural variety. These developments highlighted LEGO’s increasing design diversity and adaptability to regional markets.