Any life insurance company, at the request of the policyholder, may exchange, alter, or convert any policy of life or endowment insurance or any annuity issued by it for or into a policy of another plan of insurance or annuity as of a date not prior to the effective date of the original policy or annuity. If such newly written policy or annuity is issued as of a date prior to the date of the application for exchange, alteration, or conversion, the amount of insurance or annuity thereunder shall not exceed, on the changed plan, whichever is the greater of the two following amounts:
R.C. §3915.12