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Keywords: 4.7inchGunUSModel1906BatteryPosition.jpg Photograph from left side of US 4 7 inch Field Gun Model of 1906 in Battery position Page 162 in Handbook of artillery including mobile anti-aircraft and trench matériel 1920 <br>http //www archive org/details/handbookofartill00unitrich 1920-05 United States Army Ordnance Dept US Government no copyright PD-USGov 4 7 inch Gun Model 1906 |