A state bank may accept drafts or bills of exchange drawn upon it having not more than six (6) months' sight to run, exclusive of days of grace, which grew out of transactions involving the shipment of goods, provided shipping documents conveying or securing title are attached as security at the time of acceptance of such drafts and bills of exchange or which are secured at the time of acceptance by warehouse receipts or other such documents conveying or securing title covering readily marketable staples not subject to rapid deterioration.
No bank shall accept bills for any one person, company, firm or corporation to an amount equal at any time in the aggregate to more than ten per centum of its paid-up and unimpaired capital stock and surplus; and no such bank shall accept such bills to an amount equal at any time in the aggregate to more than one-half of its paid-up and unimpaired capital and surplus.