From Laurence Penney:
A map fan ever since I can remember, with a day job in font technology, around 15 years ago I started collecting maps that focus on one particular route. The subjects are roads, rivers, railways, flight paths and so on, and they come in a wide variety of formats. Now numbering in the 1000s, and with many fascinating items unmentioned in the literature, the collection will soon provide the source material for a website on “one-dimensional maps”, with (hopefully!) frequent updates.
The map I’ll talk about at the Show and Tell is "Carte Spéciale des Chemins de Fer et Télégraphes de Belgique" by Eugène Leloup, dating from 1859. It’s a complex diagram that shows the Belgian railway system as a geographic network at the same time as a timetable, in a manner that is (as far as I know) unique with neither ancestor nor heir.
