lost and found
a room in a public place for items left behind and from which the owners may retrieve them.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for lost and found
Historical Examples of lost and found
David, still very courteous, suggested that possibly it had been picked up and taken to the lost-and-found desk.To Him That Hath