This is a wonderful GPO telephone. Amazingly with the size of the base it originally had no bell fitted due to the complexity of the internal wiring and switching gear. I have stripped the base out and fitted a mechanical double gong ringer and made it operate with the switch to the front. I have also fitted a green light to enable the operator to see when you have an in coming call. It has a genuine GPO No12 alpha numeric dial. This telephone has been stripped down and re built after each part has been cleaned and polished. I have fitted a very best quality hand plaited braided handset cord, a quality black plastic line in cord made by me and an electronic microphone to allow perfect modern speech quality. This modification takes a lot of time and effort but I think it makes it a very useful usable telephone again and using the switching lever at the front. I can make a dial label with your information at no extra charge.