The picture is a Westinghouse relay logic 4 landing hydraulic control. You should see a metal tag with a GO#. That is the number you will need to obtain the prints. It is possible ADAMS Elevator has the file. Adams is 800-929-9247. Tell them you are looking for electrical drawings for a Westinghouse Elevator Hydraulic Control. Or call your local Schindler office and see if they can help. Schindler purchased Westinghouse Elevator