Bruin leren instrumententas met gespsluiting en draagriem Coast Artillery Drills, Part I, Pamphlet No. 5, Instruments in the Battery Observation Post-General, 1938 - Engeland Voorschrift Directions for the Use of Artillery Instruments, Pamphlet No. 14, Sound Ranging Equipment, Miscellaneous, 1946 - Engeland Voorschrift 26/GS Publications/1548
