The affixing of a seal to a record evidencing a contract for sale or an offer to buy or sell goods does not constitute the record a sealed instrument and the law with respect to sealed instruments does not apply to such a contract or offer.
Seals Inoperative
Mont. Code Ann. § 30-2-203, under Form, Formation, and Readjustment of Contract.
Mont. Code Ann. § 30-2-203