The Smithsonian online has an interesting article about “Toshers” or the people who made their living by scouring the sewers under London for bits of metal, loose coins and other detrius washed down the gutters.
http://blogs.smithsonianmag.com/history/2012/06/quite-likely-the-worst-job-ever/
Interesting reading.
great find, thanks!
Dang! Now you know why Tepic so often travels the sewers…..