Edouard Nels: Cartes anciennes de 1898 à 1907 (1st edition)
The definitive catalogue of all the German editor Edouard Nels postcards. This inventory of about 12,000 cards is exhaustive. Cards are also listed by variations, fonts types, publishers imprints. Cards with the typefaces used by Nels on his postcards come with the book and make for an easy comparison of similar cards for the advanced collectors.