W48

Here we see a W48 produced by Siemens & Halske of 1953 in black. We also notice that the handle cord is silk in some photos and in some spiral type. In one of the photos we see the number plate of the fingerwheel having letters of the Greek alphabet instead of numbers. This phone was used exclusively in a call center. In the photos that capture the inside of the device we observe the arrangement of the ground button and its connection.