Helvétius. Sa vie son oeuvre d'après ses ouvrages, des écrits divers et des documents inédits
Bradel binding in half brown cloth, smooth spine, blue shagreen title-label with slight rubbing, marbled paper boards, contemporary binding.
Handsome copy.

A collection of four extremely rare first editions:
- Thuileur des trente-trois degrés de l'écossisme (1813), “a rare and sought-after work and one of the best thuileurs in existence...” (Caillet, I, 2910). With a frontispiece and 14 plates (one folding) as well as a large folding table at end;
- Récapitulation de toute la maçonnerie ou Description et explication de l'hiéroglyphe universel du maître des maîtres (1812) with two plate;
- l'Explication de la croix philosophique (1806) with a folding plate showing the eponymous cross;
- l'Explication de la pierre cubique (1806) with a folding plate describing the stone.
This copy is further enriched with a small insert
First edition, one of 10 numbered copies on Japan paper, the deluxe issue.
Bradel binding in half chocolate-brown morocco with bands, smooth spine, date gilt at foot, marbled paper boards, brown endpapers and pastedowns, original wrappers and spine preserved, gilt edges, binding signed Honnelaître.
First French edition, rare. Translated by Etienne François de Sennevert. A fine printing on handsome laid paper.
Contemporary full polished mottled calf, smooth spines richly decorated with gilt tooling in compartments and rolls, black morocco lettering-pieces, tan morocco volume labels, triple gilt fillet borders on the boards. Some surface abrasions to the boards, joints, and borders. Slight brown waterstain in the upper margin of the preliminary leaves of volume 1. A small loss at the foot of volume 4. Headcap of volume 2 lightly worn. Loss at the lower joint of volume 1. Despite a few minor defects, a very handsome copy.