Sam. the second picture is of the gripper bar tension spring hole.
here are 2 pictures of a press with the spring in place.
the one loop spring is attached to the gripper bar by means of a ‘knuckle’ and the set screw on top locks it to the gripper bar.
The screws in the first picture are not original and could be to help support the chase into the bed of the press. do you have a chase for the press
Let me know if this helps you or if you have any other questions. Jon Drew/Mpls