Here you have more procedural materials for the TB4 Texture Library. This is the las part of the Concrete materials with a focus on smart materials created within the Toolbag system.
Rendered with Raytracing inside Marmoset Toolbag 4.
All the credits for the scans are for Thorvaldesens Museum, Musée Rodin, Nationalmuseum, Statens Museum for Kuns, STW, Victoria and Albert Museum and Musée des Augustins. Thanks to all of them for sharing centuries of art!