This is a pair of vintage Supra C realtor key lock boxes. They would have went on the door handle of a house or business that was being sold to house the keys. These 2 lock boxes come with their original key that operates both locks. The lock boxes are number matched to the key (0427). Both of the lock boxes function properly as seen in photos. They are all metal except for the inside has some plastic near the lock mechanism. Overall good shape and please note one has some information engraved on the back. Both are series 2 locks and one is number 00001 and the other is number 00011. These were made in the United States in Salem, Oregon.