Gasholder No 13

Visiting a new client in the Old Kent Road and came across this wonderful Grad II listed gasholder.  Looked it up and found this:
 
Gasholder No. 13 at the former gasworks, Old Kent Road, built in 1879-81 by the engineer Sir George Livesey, is listed at Grade II for the following principal reasons:
 
Historic Interest: the world’s largest gasholder when built, it was a pioneering structure and important achievement in civil engineering, inspiring the development of helical or geodesic structures;
 
Structural Interest: built to a radical new concept that treated the guide-frame as a cylindrical lattice shell for the first time, the gasholder had to be built up tier-by-tier since it relied on the complete circle for integrity;
 
Technical Interest: every aspect was at the forefront of technology; the wrought-iron standards were exceptionally thin, the bell used mild-steel for the first time, and the tank was the deepest then constructed and one of the deepest ever built;
 
Architectural Interest: the guide frame marked an important moment in gasholder design because it departed from the use of all applied decoration, and instead relied on the purity of the structural form;
 
Rarity: the only example of this form of gasholder on the National Heritage List, Livesey’s No.13 served as the basis for several types, and proved a highly influential prototype widely copied across the country;
 
Historic Association: one of the highest achievements of Sir George Livesey, the outstanding gas industry engineer of his generation who spent his life at these gasworks, carrying out innovations which helped ensure gas became common place across the country;
 
Group Value: with the Grade II-listed former Livesey Museum (erected by Livesey as Camberwell’s first public library) and Livesey statue, and the locally-listed No.10 and No.12 Gasholders which together with No.13 well-illustrate the development of gasholder design.
 
Amazing what you can come across!