Signalling through space without wires : being a description of the work of Hertz & his successors . Fig. 49 (p. 762, The Electrician, Vol. XLIII.).—Marconi Signalling Mast at Dover Town Hall. TELEGRAPHIC APPLICATIONS. 69

---

Size: 1553px × 1610px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, bookidsi, booksubjectelectricity