The escutcheons measure approximately 1 3/8 across from hole center to hole center. Application : I'm not sure of the exact application.
Please do your own research. Condition : These are in good condition. There are some small scratches and light dings, but they are brass, so nice and solid. There are a few spots of surface finish loss, revealing the brass underneath. They turn in the escutcheons, but one of these will need some lubrication.