Graflex Speed Graphic 4X5 Press Camera Being Checked Over

In preparation for selling this camera, I'm looking it over while the video camera is running so prospective buyers can see its condition. Hopefully it will also be useful to others who are interested in these cameras and want to know a bit more about how they work. I used to shoot some pictures with a smaller 2 1/4 X 3 1/4 version of this that was very similar, but I haven't done it since 1987, so I am going on memory of 38 years ago as I talk about this. Please forgive me if I don't do or say everything exactly right.