The SUGG Westminster is a relatively rare lantern; it is based of an original gas lantern. It's hand-crafted with copper, and it's available in three sizes: 35.5cm, 53.5cm and 76.0cm in diameter. Lamp types include: Gas, SON-T, LED or GLS. Other lamp types can also be requested, as-well-as photocells and emergency replacement lanterns.

Fazeley

This appears to be the largest example. Here it is used on-top of the Fazeley War Monument, commemorating those (From Fazeley) who died and fought for our country during the first and second world wars. It was moved from it's original location, near St Paul's Church in 1999. There are also other monuments around the UK which use reproduction gas lanterns like this one. It runs 100W SON-T.

London

This is yet another example used to light a war memorial - specifically the Guards Crimean War Memorial on Waterloo Place. Dating from 1861, this grade II listed memorial commemorates the allied victory in the Crimean war of 1853-1856.

The lantern runs what I believe is a metal halide lamp. It was installed around 2013, making it 13 years old at the time I am writing this.