Wis. Stat. § 407.202

(2) Unless a warehouse receipt embodies within its written or printed terms each of the following, the warehouse keeper is liable for damages caused by the omission to a person injured thereby: (a) The location of the warehouse where the goods are stored; (b) The date of issue of the receipt; (c) The consecutive number of the receipt; (d) A statement whether the goods received will be delivered to the bearer, to a specified person, or to a specified person or the specified person's order; (e) The rate of storage and handling charges, except that where goods are stored under a field warehousing arrangement a statement of that fact is sufficient on a nonnegotiable receipt; (f) A description of the goods or of the packages containing them; (g) The signature of the warehouse keeper, which may be made by the warehouse keeper's authorized agent; (h) If the receipt is issued for goods of which the warehouse keeper is owner, either solely or jointly or in common with others, the fact of such ownership; and (i) A statement of the amount of advances made and of liabilities incurred for which the warehouse keeper claims a lien or security interest ( s. 407.209 ). If the precise amount of such advances made or of such liabilities incurred is, at the time of the issue of the receipt, unknown to the warehouse keeper or to the warehouse keeper's agent who issues it, a statement of the fact that advances have been made or liabilities incurred and the purpose thereof is sufficient.

(3) A warehouse keeper may insert in his or her receipt any other terms which are not contrary to chs. 401 to 411 and do not impair his or her obligation of delivery ( s. 407.403 ) or his or her duty of care ( s. 407.204 ). Any contrary provisions are ineffective.