¶1Opinion by
¶2The plaintiffs in error were co-partners under the name of The Schaffer Clay and Coal Company, and were engaged in mining and shipping clay from land belonging to the defendants in error, and lea-sed to Schaffer by an instrument in writing under seal.
¶3The judgment now sought to be reversed was entered in an action by defendants in error against said firm for royalties on clay taken from said land.
¶4The principal error urged is in the admission in evidence of the said lease against both defendants it b.eing signed by only one of them and making no reference to the other. Authorities are cited to the effect that in an action on a covenant, under seal, no person not a party to the covenant, and not named in it, can be made liable on it.
¶5It is conceded that, if the action were on a simple contract, the interest of an undisclosed principal might be shown; but the seal, it is contended, is effectual to prevent that result in this case.
¶6Without determining what is the weight of authority on that question, it is sufficient to say that the rule invoked does not apply here.
¶7This is not an action of covenant, but an action on the special facts of this case.
¶8The complaint alleges a lease to the defendants; that the lease was executed to Schaffer for the use and benefit of said defendants as co-partners; that they entered into possession of the premises and worked the same by extracting clay therefrom in a quantity named.
¶9Evidence to support these allegations was introduced without objection, and the objection to the lease itself did not include the fact that it was sealed.
¶10It is now too late to inject into the case a question as to the effect of the seal on the admissibility of the lease in evidence.
¶11The theory upon which the case was tried by both parties treated the lease as subject to the same rules as a simple contract and this court is not called upon to consider it on a different theory.
¶12We find no error in the admission of the lease in evidence, or in the instructions, and the judgment is accordingly affirmed.
¶13Affirmed.
¶14Chief Justice Garrigues and Mr. Justice Burke concur.