Supplemental sets are the parts packs of LEGO System i Leg, the System of Play that LEGO launched in 1955 to turn its bricks into one connected toy. Builders bought them to add more of the parts they needed, such as bricks in each size, windows and doors, roof bricks, plates and corner bricks. Others add details for the town plan of the time, such as Esso petrol pumps and signs, light masts, letter bricks, Danish and international flags and beams printed with Danish shop names.
1957 LEGO Sets
1957 marked LEGO’s 25th anniversary and a turning point in leadership. Founder Ole Kirk Christiansen’s health had declined, leading to the appointment of his son Godtfred Kirk Christiansen as Managing Director. The company continued to refine the System i Leg range and introduced the 700-series wooden box sets. Multilingual packaging appeared for the first time to support LEGO’s growing international markets. LEGO Schweiz was founded in Switzerland—the company’s first subsidiary outside Denmark—signaling the beginning of true global expansion.