No delivery shall be made of any portion of the grain so privately stored unless the bill of sale therefor is presented to the seller, or other person in charge of the storage facility, and the amount of grain so delivered plainly endorsed upon the bill of sale; but this provision shall not apply to any consignment of the grain by the seller to the buyer upon the expiration of the time for delivery specified in the bill of sale.
Ca. Civ. Code § 1880.8