Okla. Stat. tit. 62, § 62-57.36: Interim bonds

The Commission is authorized to issue one or more interim bonds

representative of the bonds so sold, which interim bonds may be in

any denomination, shall have all the qualities and be secured by all

the covenants and pledges made to secure the bonds so sold, but said

interim bonds shall represent the bonded debt only until such time

as the definitive bonds are printed, executed and delivered to the

purchaser thereof. No tender of any such interim bonds shall be

valid until the expiration of the period of contestability provided

in this act. Simultaneously with delivery of the definitive bonds,

any such interim bonds shall be surrendered for cancellation and

cancelled by the State Treasurer of Oklahoma.