Recherche dans la collection - A plan of the Magdalen, Brion, Bird, Entry and Deadmans Islands in the Gulph of St. Lawrence. Surveyd in the Year 1766. [cartographic material]

7 Sept/76 Map was sold at Sotheby's/ Robert Simpson Auction, 16 Oct/67 (Toronto) (lot 54).
See the catalogue of that sale:
Sotheby & Co., Catalogue of old master : eighteenth and nineteenth century, impressionist and modern paintings, drawings and sculpture ... and a collection of manuscript maps of places relating to General Sir Jeffery Amherst, 1st Lord Amherst's campaign in Canada, including maps of the capture and defence of Quebec ... Sotheby's at Simpson's..., London, c1967, p. 74-95 (lots 53 to 64) [Amicus 13820013; some maps sold at this auction were acquired by the Canadian War Museum. The connection with Amherst has to do with the historical context, not the provenance - the maps were not owned by him].

Microfiche: NMC17134.