Section 36-9-110 - Certificate of purchase; conversion of outstanding certificates; fee(a) Any certificate of purchase of state or school land issued and outstanding when this act takes effect may be converted into an amortization certificate on the plan set forth in this act at the request of the holder of said certificate of purchase, and with the consent of the state board of land commissioners; provided, however, that any certificate holder converting said certificate as herein provided shall pay interest on future payments at the rate of four and one-quarter percent (4 1/4%) per annum and six percent (6%) per annum on all amounts not paid when due. (b) The director shall collect in addition to the fees provided by law the sum of two dollars ($2.00) to be used by him for expenses incidental with transfers as made optional by this act for supplies, extra clerk hire, etc., and any unused portion of same shall be paid to the state treasurer at such time as all transfers have been made.