788-1147-ND; F019-W is a dimming switch made by LEDdynamics Incorporated and the datasheet uses the following terminology under “Package Contents”: Low Voltage Dimming Control with handle and mounting plate. While this may be obvious to some, this is somewhat vague. The term “mounting plate” suggests that the faceplate comes with, however, there are no photos of the “plate”. This leaves things up to interpretation, so it makes sense to ask.
We can check physical stock for you and make sure we know what the terminology is referring to. I confirmed that it is talking about the faceplate. If you ever have a question about vague datasheet details, feel free to reach out on the Forum.