The letter discusses matters concerning the couple’s family, and gives news on their friends. Gravelot notes that he is currently working on some engravings to be used in the works of Voltaire.

Voltaire writes that Leibniz was known in the universe by his works and was respected in his home country. He adds that Leibniz instructed kings and enlightened the wise, concluding that he knew how to doubt. A provenance note added to the MS states that the poem was written for Pierre Soubeyran who was tasked with engraving the portrait of Leibniz that the verse would accompany. This portrait first appeared in the Mercure de France in August 1748 (p.161), but was engraved by one Gilles Edme Petit rather than Soubeyran as the note suggests.

A collection of various documents, including: (I) Set of assignats comprising 16 assignats of five pounds from 1793 (Brumaire year II), 11 assignats of ten pounds from 1792, 3 assignats of fifteen sols from 1793, 2 assignats of 10 sous from the fourth year of freedom, 4 assignats of fifty sols, and 1 assignat of twenty-five sols.
(II) Set of autograph documents from Besins & Cie. including a letter from Joseph B. to Napoleon I (Madrid, 1808), a letter from Verlaine, a letter from Malherbe, a codicil from Napoleon, a testament from Racine, a note from Pierre Corneille, a letter from Voltaire to the Count of Laurencin, a letter of resignation from Cardinal de Rohan to Louis XVI, lots from the trial of the necklace (1786), last letter from Louis XVI to the National Convention, a letter from Beaumarchais to the Minister of the Interior, a letter from François I to the Empress, wife of Charles V on the subject of the interview at Aigues-mortes, a letter from Marie-Stuart to Philip II, a letter patent from Charles VII ennobling Jean d’Arc and his family (1429), a farewell letter from Charlotte Corday to her father after his arrest for the assassination of Marat, and some minutes.
(III) A set of four drypoint engravings of Versailles by Laboratoire Galbrun, ‘Bassin de Cérès’, ‘Le Tapis vert’, ‘Temple de l’Ampur'[?] and ‘Maison de la Reine’.
(IV) Les Laboratoires Carlier, ‘La cabinet de Perles’ by Thomas Lawrence, engravings, 1837.
(V) ‘Woman in French painting, 17th, 18th and 19th century’, Les Éditions Nationales, Paris.
(VI) A handwritten letter in English located in Quebec and dated 28 July 1754.
(VII) Certificate ‘To the glory of the great architect of the universe’ dated 23rd day of the 11th month of the year of true light 5826 (1817).

The collection includes 8 engravings, 3 postcards, 2 greeting cards, and a 1952 prospectus for Voltaire’s Correspondence, ed. Theodore Besterman.

The commonplace book contains handwritten selections of verse, including some by Voltaire, maxims, and epigrams. There are also fourteen small engravings of Mademoiselle Clermont, grande route, Henry IV et le paysan, un femme arretée par des voleurs, Henri IV et ses enfans, and others.