A Lost Instrument surety bond is a bond required by banks or other financial instrument transfer agents for persons who have lost or misplaced bond or stock certificates or a payment check. The intuition/agent agrees to pay the person the value of the lost instrument or provide a replacement in exchange for a surety bond. The bond promises to reimburse the intuition/agent in the event the original instrument is found or surfaces and is sold, traded or transferred in a manner which causes the institution/agent financial loss.
These are also called Lost Securities surety bonds.