Massachusetts General Laws
Chapter 107 - Money and Registration, Issuance and Redemption of Bonds and Other Securities, Facsimile Signatures
Section 2 - Accounts, Notes, Bonds or Other Instruments Expressed in Other Moneys

Section 2. The preceding section shall not vitiate or affect an account, charge or entry made, or a note, bond or other instrument expressed in any other money of account; but in a suit thereon such other money shall be reduced to dollars and fractions thereof.