Came across this site if you like old prints.
http://freepages.genealogy.rootsweb.ancestry.com/~cmhrc/index.htm It's pretty self-explanatory but some of the prints are really quite good. As it deals mainly with collliery disasters it's not exactly happy viewing but certainly illustrates the dangerous nature of coal mining vividly. As it happens a couple of good engravings of Penrhyn in 1858 sneaked in somehow.
The past is a foreign country: they do things differently there.