Okla. Stat. tit. 23, § 23-39: Breach of warranty of agent's authority

The detriment caused by the breach of a warranty of an agent's

authority, is deemed to be the amount which could have been

recovered and collected from his principal if the warranty had been

complied with, and the reasonable expenses of legal proceedings

taken, in good faith, to enforce the act of the agent against his

principal.