This is a mounting plate for a W65 PTT wall telephone. Used in the years 70-80! I draw this thing because with a lot of W65 telephones the wall mounting-plate is missing. This phone is now again popular because it's used for A Wonderfoon to play music for people with dementia or elderly people. This plate you can screw on the wall with 3 screws. On this mounting-plate you can mount the W65 telephone with the 2 original screws or with 2 Parker screws, see the pictures!