The lost and found must be clearly written, including time, place, lost items and contact information.

For example, like this

20 18 accidentally lost a wallet (black, canvas) in the government square at 8 pm on August 6. There are many important documents in the bag, such as ID card, bank card and so on. I hope that whoever finds them can contact me as soon as possible. Thank you very much. Contact mobile phone: xxxxxxxxxx.

This revelation

Contact: Xiaohong (two spaces)

201Aug. 8 17 (two spaces are empty)