“Where an agent enters into a contract on which he is personally liable, and judgment is obtained against him on it, the judgment, though unsatisfied is, so long as it subsists, a bar to any proceedings against the principal, undisclosed or (perhaps) disclosed, on the contract.” (2) Article 104, para. 9-057: “Any liability of an agent on any contract made by an agent on behalf of his principal is discharged by the obtaining of judgment against the principal, …”
“If they have to make an election, it is only if and when judgment is given in their favour.”