 He moved into one such bungalow residence himself, and co-designed one for Expo 58 in Brussels the following year.Ludwig won out over 324 others in the competition to design the monument to those who died during the Berlin Airlift of 1948–49, although for reasons of cost and materials shortages, the aluminium cladding he had specified was replaced with reinforced concrete.He also designed the sans serif typeface for the inscription at the base listing the dead.