Seller: pre17 (928) 100%, Location: Niagara Falls, New York, Ships to: US, Item: 112210932273 NOS, P+S, #91031, Antique/Vintage Face Plate, Switch Plate, single gang, (mounts to old and present boxes using standard 8/32 screws you can buy at a hdwr store). Some of these plates may have screws, but most do not and I am not able to/nor want to, open all packaging to verify this. All plates stored indoors in boxes from an estate. The mounting plates may have some oxidation on them but that does not show when mounted nor does it affect performance of the plate or cover. The covers appear to be Bakelite, but I have no way of testing to verify. I do not have the switch or receptacle that would fit into this opening. I will verify that each set includes one mounting plate and one front plate in NOS condition, no screws included. Color: Brown, Maker: P+S, Material: Bakelite?