Door Knob PURPLE Glass w Brass Ferrell (pairs) vintage Amethyst New Replica Hardware High Quality Glass Door Knob Set (sold as pair only) Vintage style , made brand new Purple / Amethyst Pressed Glass with solid brass neck or ferrell Size: 2.25" depth 2 3/8" diameter fit 5/8' rosettes or back plates come with 1/4" split spindle for privacy or passage latch sets Don't forget we can age the ferrell from brass as it is now to antique bronze or even Tiffany antique green , drop us a line if this is what you need