This MS copy is preserved in the Pierre Lullin papers. Lullin was one of two secrétaires d’Etat de la république de Genève from 1762 onward and so it is probable that this MS copy is transcription of a version of the text that the Genevan government were aware of.
Repository: Archives d'Etat de Genève, Geneva, Switzerland
This copy, in an unidentified hand, accompanies a letter from Pierre-Michel Hennin to the duc de Praslin, ministre des affaires étrangères, dated 23 December 1765. Voltaire hand delivered the MS to Hennin during a meal at Ferney.
Repository: La Courneuve, Centre des Archives diplomatiques du ministère des Affaires étrangères, France