Please note that we have temporarily paused our iconic Underground Tours until April 2025, to install a brand new winding engine. The Museum remains open with a brand-new Time Tunnel experience now bookable.
The Clowes lamp is another example of a lamp developed solely for gas testing. The design was an enhanced version of the well-regarded Ashworth Hepplewhite Gray lamp, and devised by James Ashworth and Professor Frank Clowes in 1892.
