About LEGO Classic Supplemental
Supplemental sets are the parts packs of the 1960s, sold so that builders could add to a basic set the bits they needed most. They held windows and doors in frames, plates in several sizes, corner bricks, gates and fences, turntables, wheels with axles and train couplers. Many of these parts were new at the time, and the packs were often the first way to get them, like the wheels LEGO introduced in 1962.
1963 LEGO Sets
1963 was pivotal for material and design innovation. LEGO completed its transition from cellulose acetate to acrylonitrile butadiene styrene (ABS), improving color stability, durability, and clutch power. The company also launched Modulex—a smaller, precision-scaled building system for architects—produced by the new subsidiary Modulex A/S. Modulex elements were based on a 5mm grid and designed for 1:20 scale modeling, expanding LEGO’s presence into professional design and planning.