Marconiphone Type 64 loudspeaker, 1925-1929, serial no. 4240.
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London
Marconiphone Type 64 loudspeaker, 1925-1929, serial no. 4240.
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London
Marconiphone Type 64 loudspeaker, 1925-1929, serial no. 4240.
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London
Marconiphone Type 64 loudspeaker, 1925-1929, serial no. 4240.
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London
Marconiphone Type 64 loudspeaker, 1925-1929, serial no. 4240.
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London