Inter-Insurance Exchange of Chicago Motor Club v. Westchester Fire Insurance

I believe that the endorsement served to nullify the operation of Exclusion (c). To me there is an ambiguity between the provisions of the policy and those of the endorsement that must be resolved by resort to rules of construction applied to the endorsement and its effect on the policy. The endorsement is inconsistent with the policy and since the endorsement was agreed to at a later time I would conclude that its provisions should prevail.1

If Westchester intended that the exclusion requiring the trailer to be used only with vehicles insured by Westchester was not to be abrogated by the…