- Un siècle de télécommunications en Suisse 1852-1952. 3 volumes. Tome 1: Télégraphie. Tome 2: Téléphone - Sources de courant et instalations d'énergie - Lignes aériennes et lignes souterraines. Tome 3: Téléphone suite - Radio et télévision - Au service de l'armée - Installations pneumatiques et mécaniques - Recherches et essais - Tarifs - Législation et contentieux, etc.

Berne, Direction générale des PTT, 1952. 295x215mm, 323 + 950 + 1043 pages, reliure d'éditeur. photos n/b, richement illustré, Exemplaire à l'état de neuf.

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