Request by owner and validity of transaction guaranteed in accordance with Treasury Department Circular No. 888, as revised. (Name, location and paying agent code number assigned by a TRS Site.) (Name, location, and paying agent code number assigned by designated Federal Reserve Bank.)
This endorsement must be legibly impressed in black or other dark-colored ink on the back of the security in the space provided for the owner to request payment.
31 C.F.R. §330.3