Vintage, octagon shaped, bulbous style glass door knobs with their set screws and simple round escutcheons. The brass finished collars are secure (knob doesn't spin inside the collar). They might have a little residual paint, but this is a pretty decent pair of knobs. This knobset set is a little more than the rest we just put out for sale because it features a manganese glass knob on one side. Manganese was used in glass until 1915 and naturally turns the glass purple over many years of UV light exposure. That's why the glass blocks in the Pioneer Square sidewalks are so purple!