This is a nice example of a GPO 706L dated 1963 on the base. I have fitted it with an electronic microphone to enable perfect speech quality. It is converted and ready to simply plug in and go. This telephone has been upgraded with a small electronic device to change the pulse dialling to modern tone and so enabling it to work on any modern network even where pulse dialling is deactivated on the network. The dial works in just the same way but the pulses go through a small box inside the telephone and convert them to modern tones. This can be reversed without any ill effect to the telephone as all the original components are still used. This part was quite time consuming to fit and was an additional cost to purchase. I can make a dial label with your information at no extra cost.