Code of Federal Regulations Title 39. Postal Service § 39.230.34 Disposition of property of unknown owners where property is valued over $200

(1) A description of the property, including model or serial numbers, if known;

(2) A statement of the location where the property was found;

(3) The name, address, and telephone number of the Executive Special Agent in Charge who has custody of the property;  and

(4) A statement inviting any person who believes he or she is fully entitled to the property to submit a claim for its return with the Executive Special Agent in Charge identified in the notice. Such claim must be submitted within 30 days from the date of first publication of the notice.