This is made from a Bakelite type material and is very heavy. Made in Japan Tokyo. OKI Electric Industries Co Ltd
A very rare telephone to find and as you can see a superb design. This is very well made and a lovely solid piece of telephone history. A rare item to find in this condition. This one is as I bought it 20 years ago and now removed from storage. I have not restored this one and is in wonderful as found condition. I connected it up and it works perfectly to both dial out and receive but being sold as a collectors piece. It retains all its labels to the base and a diagram inside and even the original dial label. The handset cord is dirty but if cleaned would be wonderful. It has an enamel manufactures label on the front and the logo in the shape of a diamond in the back of the case and the underside of the handset. As I said just as I bought it and looks totally original with no damage or staining.