Liber veritatis, or, A collection of two hundred prints after the original designs of Claude le Lorrain in the collection of the Duke of Devonshire,
A 1777 London collection of two hundred prints by Richard Earlom, published by John Boydell, reproducing Claude Lorrain's original landscape drawings held by the Duke of Devonshire and aimed at collectors and art lovers. The plates show classical landscapes with trees, ruins, rivers and small figures, rendered in soft tonal etching and mezzotint-like shading that a designer could use for atmospheric scenery and pastoral compositions.


































