Telephone set D mk V (Telefoon set D MK V)

 Two vertical webbing loops are attached to the rear of the body. The housing opens by a hinged fold back lid that is secured by a hook and eye closure. Attached to the inside of the lid are two metal plates. The first is a circuitry diagram, the second is the instructions for use of the set. The interior contains the phone assembly and is divided by a wooden shelf. On the left is a bell with two screw terminal in front labeled 'L1(line 1), and 'L2 or E' (Line 2 or Earth). At the center is the telegraph key and behind that is the battery box with a small metal plate with, 'TELEPHONE SET. D.MK.V PL SERIAL NO. 131444'. To the right is metal box containing the Buzzer 'T' Mk I with two terminals. Attached to the bottom of the shelf is a slide out metal key on which is stamped, 'PRESS KEY WHEN FINISHED'. Below the shelf is a compartment in which is stowed a black bakelite handset with attached cord and four-prong plug.