MINES D'ANZIN (59) - Chief Engineer CLERE / Set of 2 autograph letters signed by Chief Engineer CLERE, totaling 4 p small in-4 plus address pages with postmarks, Anzin, to his father in Macon: in 1821, he talks about an "electric machine" that he intends to "arrange" with him, "it's not, however, that I occupy myself much with physics now, the numerous affairs with which I am burdened deprive me of this pleasure as well as of several other studies, I really do nothing but scribble paper from morning until evening and when the fine days arrive I then have to leave books and paperwork to set out to run the world which, incidentally, does not flatter me infinitely, my only advantage is to be somewhat independent and to receive orders only from the supreme head of my administration" - in 1829, he gives news of his children, in particular Camille, a quiet, cheerful boy, "who amuses everyone with his kindness and graces" (Camille was a pupil of Léon Coigniet and went on to become a well-known history painter) / Enclosed: a friendly letter from Monsieur Ravier of Besançon in 1827, 2 p small in-4 plus address page with postmarks, addressed to the chief engineer of the Mines of Anzin Clère