mid century vintage door dead lock w/ keys surface mounting deadbolt hardware

vintage surface mount dead lock door hardware with cylinder and keys. This lock has a button on the inside that can be slid to prevent the bolt from being unlocked from the outside with the key.

This lock has some wear, tarnish etc. from years in storage, but I don't think that the cylinder has ever been installed. The grooves in the mounting screws and the unlocking lever are for fitting the cylinder to the thickness of the door.