Bloomsbury is holding a two-day sale of Travel and Topography: Books, Photographs, Maps & Atlases in London, on May 6-7.

And among the highlights is a must-see for collectors and rare manuscripts also looking for a good appreciating investment.

Dated to 1815, Voyage Pittoresque de Geneve à Milan par le Simplon by Gabriel Lory (the younger) features 35 hand-coloured aquatint plates within black rule borders.

Legendary precocious as a child, Lory - the son of Gabriel Ludwig Lory the elder, who trained him - was a Swiss painter, watercolourist and engraver.

Voyage Pittoresque de Geneve à Milan was the most popular of a number of illustrated books on which he collaborated with his father.

Later into Lory's life, many experts hold that his paintings became freer and better organised than those of his father.

According to Bloomsbury's listing, this is an excellent copy of the scarce first edition, "the splendid contemporary colouring is vibrant yet sympathetic."

The value of this historic work by Lory the younger should be assured for the lucky buyer.

Another copy, bound with a first edition of Voyage Pittoresque aux glaciers de Chamouni (featuring seven colour plates with large inset marbled-paper panels) sold for £18,400 at Christie's way back in 1993.

• More news on Art and Books & Manuscripts
• Enjoy the read? Don't forget to sign up for your free newsletter with exclusive content