Thought this sub would enjoy this beautifully old glass doorknob. I am not sure if the purpling is a result of UV irradiation or if the doorknob is made from amethyst glass. :
Crystal Glass Cabinet Knobs Dresser Furniture Door Knobs - Temu United Kingdom
Facetted Pink Glass ball door Knob Polished Chrome 70mm rose
8pcs 30mm Diamond Door Knobs, Crystal Glass Diamond Door Knobs With Screws ( purple)
Purple Daisy Glass Door Knob | British Ironmongery
Purple Frosted Smooth Glass Door Knob | British Ironmongery
Wickes Faceted Glass Door Knob - Pink/Chrome 30mm Pack of 4 | Wickes.co.uk
JH5260 Purple Coloured Faceted Sprung Mortice Knob Furniture - Glass & Crystal Door Knobs - Door Knobs
Purple Smooth Glass Door Knob | British Ironmongery
Fulton & Bray FB400CPP pink glass ball knobs on chrome rose - Glass Door Knobs on Rose
Rare Antique Deep Amethyst Glass & Brass Door Knobs Circa 1800s – DragonQuarry Antiques & Restoration
Purple is a rich color steeped in history with strong connections to the powerful. Once considered for royalty only, p… | Purple glass, Glass door knobs, Door knobs
Crystal Glass Cabinet Knobs Dresser Furniture Door Knobs - Temu United Kingdom
Amethyst Purple Glass Door Knobs Mortice Or Rim | Door handles & door accessories | Cheshire Hardware
Purple Love Heart Glass Door Knob | British Ironmongery
Ancora Imparo: Purple Doorknobs
can't get that purple door knob out of my mind - I MUST HAVE IT!! | Glass door knobs, Crystal door knobs, Glass door
Ballard Reuse - Ever wonder how some glass doorknobs turn purple? Before 1915, manganese dioxide was used to decolorize the greenish tint of glass caused by iron. It oxidizes the iron and