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Philips
// ΜΤ-015532 // 1930s-1940s
Telephone lines testing equipment
DImensions: 505 x 60 x 25 cm Location: Netherlands Material: wood,glass,bakelite,metal
Philips telephone lines testing device, wooden frame, 24 connecting switches, numbers selection dial, three indication panels, milliamperes, frequency and impedance. On the left is the hook with black plastic handset.