United States Guarantee Co. v. Liberty Mutual Insurance

The policy of the plaintiff, United States Guarantee Company, is known as a “National Standard Auto mobile Liability Policy,” and. the policy of the defendant, Liberty Mutual Insurance Company, is known as a “Public Liability Policy.” Each policy contained the usual provision to defend the assured in actions commenced against it, subro-gation clause, and a provision relative to other insurance. In substance, the paragraph relative to other insurance in each policy provided that if the assured carried a policy of another insurer against loss and expense covered by its agreement, the assured…