The letter concerns Voltaire and Count Falkenstein. Also included is a second autograph letter signed, written from Bruenn and dated 4 April 1785, that concerns marble and phosphorescent stone.

Voltaire begins by saying that since Cramer no longer has pain in this teeth, he can rummage through his papers and return to Voltaire the beautiful life of ‘du grand freron.’ He adds that he forgot to tell Cramer yesterday about Madame d’Epinay’s bargain: she can shoot him for a Louis at the right time. If not, he has to pay four.