Power supply for field wireless sets - Engeland Voorschrift, 26/Manuals/81 Organization and inter-communication in the field - Engeland Voorschrift, 26/Manuals/90 Construction and maintenance of lines (War Office) - Engeland Voorschrift, 26/Manuals/381 Statement relating to defence Naval edged weapons : in the age of fighting sail, 1775-1865 / Sarah C. Wolfe