Artillery training : Predictor No. 1 / War Office. Vol IV / @War Office. Part I: A.A. Gunnery / @War Office Artillery training : Predictor A.A. No. 3 and the power controlled 40-mm. L.A.A. gun / War Office. Vol IV / War Office. Part I: A.A. … Artillery training : Predictors A.A. Nos. 2 and 5 / War Office. Vol IV / @War Office. Part I: A.A. Gunnery / @War Office Artillery training : Predictor A.A. No. 4 / War Office. Vol IV / @War Office. Part I: A.A. Gunnery / @War Office Artillery training : Predictor A.A. No. 10 / War Office. Vol IV / @War Office. Part I: A.A. Gunnery / @War Office