Note 24 — Chapter IV · CONTEMPORARY DOCUMENTS.
Reading edition
[Compare ‘Die Geschichte und Entwickelung des Fernsprechwesens,’ a pamphlet issued officially in 1880 from the Imperial German Post-Office in Berlin, p. 6.]
Reading edition
[Compare ‘Die Geschichte und Entwickelung des Fernsprechwesens,’ a pamphlet issued officially in 1880 from the Imperial German Post-Office in Berlin, p. 6.]