List of Naval Guns, listed below by country of origin in decreasing caliber size: Argentina 12"/50 caliber gun 7.5"/52 caliber gun EOC 10 inch 40 caliber EOC 15 inch 55 caliber Austria-Hungary Škoda 35 cm K14 Škoda 30.5 cm /45 K10 Škoda 24 cm L/40 K97 Škoda 19 cm vz. 1904 Škoda 15 cm K10 Škoda 10 cm K10 Škoda 7 cm K10 Škoda 7 cm guns Brazil EOC 12 inch/45 naval gun China Type 79 100 mm naval gun H/PJ-38 130mm naval gun France 380 mm Model 1935 naval gun 340 mm Model 1912 naval gun 340 mm Model 1881 naval gun 330 mm Model 1931 naval gun 305 mm Model 1910 naval gun 305 mm Model 1906 naval gun 305 mm Model 1893 naval gun 305 mm Model 1887 naval gun 274 mm modèle 1887/1893 naval gun 274 mm modèle 1893/1896 naval gun 240 mm Model 1902 naval gun 203 mm Model 1931 naval gun 203 mm Model 1924 naval gun 194 mm Model 1902 naval gun 194 mm Model 1893 naval gun 194 mm Model 1887 naval gun 164 mm Model 1884 naval gun 164 mm Model 1893 naval gun 155 mm Model 1920 naval gun 152 mm Model 1930 naval gun 138 mm Model 1888 naval gun 138 mm Model 1893 naval gun 138 mm Model 1910 naval gun 138 mm Model 1923 naval gun 138 mm Model 1927 naval gun 138 mm Model 1929 naval gun 138 mm Model 1934 naval gun 130 mm Model 1932 and 1935 naval gun 130 mm Model 1930 naval gun 130 mm Model 1924 naval gun 130 mm Model 1919 naval gun 100 mm Model 1891 naval gun French 100 mm naval gun 90 mm Model 1926 naval gun 75 mm Model 1924 naval gun Canon de 65 mm Modèle 1891 Canon Hotchkiss à tir rapide de 47 mm Paixhans guns Germany 40.6 cm SK C/34 Naval gun - also known as the Adolf gun, Intended for the H-class battleships which were never completed. Used as coastal artillery. 38 cm SK C/34 naval gun - World War II 38 cm SK L/45 naval gun - World War I 30.5 cm SK L/50 gun - World War I 28 cm SK C/34 naval gun - World War II 28 cm SK C/28 naval gun - World War II 28 cm SK L/50 gun - World War I 28 cm SK