William Perry opened a shop at 72 New Bond Street in 1817 as Glass Manufacturer to the Prince Regent. The firm continued under different ownerships until the Depression of 1930. Perry produced a range of magnificent chandeliers, generally suitable for palaces. During the second half of the nineteenth century, at least, their name was linked with a particular kind of chandelier. It featured long, slender stem-pieces centring on an urn-shaped section, with generous double-ogee canopies above and a similar shaped dish inverted as a receiver bowl for the branches. Arms were normally rope-twist, often with moulded drip pans. There were seldom glass candle cups, merely a short tube with a saveall. The chandelier would be profusely dressed with graduated festoons of 'double-star' prisms and English 'pear' pendants, often alternating with clear spheres, and below, a faceted, pointed finial. They closed in 1921.

We apply this term to a wall light on a mirror back; the reflection giving an all-round light. Can also be used of any circular, branched support for candles or lights.

Often now referred to as 'crystal', the glass was blown and shaped, then passed to a specialist cutter, who would polish and cut patterns to enhance its brilliance.