The Church of Saint-Pierre-aux-liens (1937-1939), designed by architect Fernand Dumas, is one of the major buildings of the Saint-Luc Group and a testament to its ambitions to revive sacred art. The architect planned the almost exclusive use of glass for the interior design. The altars, communion table, pulpit, and chandeliers were made by the Labouret workshop in Paris, which, along with glassmakers François Décorchemont and Félix Gaudin, invented the glass slab (1928). The church choir is adorned with a vast composition by Emilio Maria Beretta that covers the entire wall of the flat chevet. This glass painting depicts the deliverance of Saint Peter by an angel who frees him from prison. The non-figurative stained-glass windows were designed by Yoki (alias Émile Aebischer) and created in collaboration with glassmaker Michel Eltschinger. They used two different techniques: the rose window of the gallery (1969) is made of glass slabs, while the stained-glass windows of the nave are made of lead mesh, of variable width (1979).