Abstract: An identifier such as a strip of heat resistant metal, containing preselected identifying information in the form of an alpha-numeric serial number is concealingly retained in a carrier member. The carrier member has a preselected shape and configuration adapted for releasable engagement to a structure, such as an item of personal property, to be identified by information such as the alpha-numeric serial number to disclose in a concealed manner ownership of the structure. In one manner of use, the carrier is an integral part of the structure to prevent visual detection of the carrier on the structure by a thief. The carrier member includes in one embodiment an amorphous body with the metal strip identifier encapsulated within the amorphous body. The amorphous body is indistinguishably attached to an item of personal property or the like, which ownership is identified by the information inscribed on the metal strip and is concealed on the item.