Bell 40w externally coated pink candle lamp

Another classic Bell lamp, I still come across a fair few of these large coloured candle lamps that they offered. I have a similar lamp but it has a different kind of colour coating (not acid-etched like this one). This lamp was found in a hardware shop in Chelsea, lots of Bell lamps there (most of them modern) - no doubt all of the rich people like to use them in their fancy chandeliers!