Coast Artillery Drills, Part I - Pamphlet No. 13, Travel Correction Calculator-Magslip Transmission in conjunction with Ballistic Correction Calculator, 1944 - Engeland Voorschrift Basic and Battle Physical Training. Part V. Jumping, Vaulting, Climbing, Scaling and Obstacle Training. WO 7048 - Engeland Voroschrift 26/GS Publications/1563 Coast Artillery Drills, Part I-Pamphlet No. 10, Travel Correction Calculator - Watkin Transmission in conjunction with Ballistic Correction Calculator and Disc Predicting (Course and Speed), … Coast Artillery Drills, Part I-Pamphlet No.17, Drill for Fire Direction Table, Mark IIA, IIB or IIAB, in conjunction with Co-ordinate Converter and the Ballistic Correction …