...reformation may be had of a contract, deed, settlement or other instrument in these words : " * * * Equity has jurisdiction to reform written instruments...other inequitable conduct of the remaining parties. In such cases the instrument may be made to conform to the agreement or transaction entered into according...

...in its written form, does not express what was really intended by the parties thereto; and, second, where there has been a mistake of one party, accompanied...other inequitable conduct of the remaining parties. In such cases, the instrument [Holland Blow Stave Co. v. Barclay, et al.] may be made to conform to...

...instrument does not express what was really intended by the parties thereto; and, second, when there was a mistake of one party, accompanied by fraud or other inequitable conduct of the remaining parties (3 Pom. Eq. Jur. § 1376); and the evidence to justify the court to decree a reformation on the ground...