This is a nice example of a blue GPO 746. This colour suffered a great deal from sun damage but this one is very good and only slightly green blue. You would not know unless I told you. This material always changes in colour unless you can find boxed cases. It has been stripped down and rebuilt after each part has been cleaned and polished. The dial contacts have been cleaned and set up correctly. I have fitted an electronic microphone for perfect modern use. I can make a dial label with your information at no extra charge.