warehouse receipt or other such document conveying or securing title covering readily marketable staples. A commercial bank shall not accept such drafts or bills in the aggregate to an amount exceeding 150 percent of the sum of its shareholders’ equity, allowance for loan losses, capital notes, and debentures or, when authorized by the commissioner, to an amount exceeding 200 percent of the sum of its shareholders’ equity, allowance for loan losses, capital notes, and debentures. A commercial bank shall not accept such drafts or bills for any one person to an amount exceeding 10 percent of the sum of its shareholders’ equity, allowance for loan losses, capital notes, and debentures, unless the bank is and remains secured by either attached documents or some other actual security growing out of the same transaction as the acceptance.

to that portion of an acceptance which is issued by such bank and which is covered by a participation agreement sold to another institution.