70078546 - Noerdlicher See-Elefant, Mirounga angustirostris, Mexiko, Pazifischer Ozean, Guadalupe70415849 - The B-23 was the first operational US bomber equipped with a glazed tail gun position 1 The tail gun mounted a 50 caliber machine gun, which was fired from the prone position by a gunner using a telescopic sigh
