Telephone D. For speech and Morse. Cable laying apparatus. This impressive description is of a simple frame with a carrying handle to take a small cable drum. The most common was the Equipment, Cable Laying, Mk2. I have not found a photo of this but there are many photos of similar US and German apparatus. US Army cable laying apparatus. If anyone has a picture of the British apparatus please share it. (See Post 25). Mike I have changed the photo of the telephone. Trackfrower hinted that I had posted Telephone L instead of Telephone D. Correct now ( I hope).