We have two interior mahogany panel doors with original Sargent door knobs. These doors were apparently stored in the garage for many years. One door has two small holes in the middle top where a hook was located (on the back side). Both doors have a small hole in the bottom corner where it appears there was a door stopper. If you are interested please email me directly at tcaoyoung AT prodigy DOT net. $20 each.
10/15: The doors are gone. Thanks to those who expressed interest.