Standard Rubble Concrete Blocks (Moellons Standard en Agglomérés)

This technical plate documents standardized concrete block designs by French architect Hector Guimard, known for his Art Nouveau métro entrances in Paris. The sheet presents eight variations of modular building units, showing both isometric perspectives and cross-section details. Each configuration demonstrates different aggregate compositions and internal structures—from simple partitioned blocks to reinforced designs. Guimard's systematic approach reflects early twentieth-century industrial rationalization, where architects applied design principles to mass-produced building materials. The precise dimensioning and multiple views exemplify the technical drawing conventions that would influence modernist design across Europe.