'Optimus' patent water closet, 1870.
3 5 c m
actual image size: 32cm x 27cm

'Optimus' patent water closet, 1870.

Exton, David

© Science Museum / Science & Society Picture Library


The 'Optimus', designed by Stevens Hellyer, introduced in 1870, was an improvement on earlier designs of water closet and had a more positive flush. Raising the handle opens a large flap-valve at the base of the pan and also turns on the flushing water.



Image Ref.


buy a print

Select size
Select finish
How many prints?

buy a framed print

buy a canvas

buy a framed canvas