(fallen london stamps by the doctor, as a highly competent (despite all appearances) Correspondent with a very deep understanding of the Red Science, does get inquiries for work, but he's choosy about which projects he takes on given that he much prefers to be doing dubious research or sewing up the newly-dead. that, and he's visibly insane and disreputable even for a Correspondent, and he lives out in a monster-ridden marsh, so most folks end up commissioning someone else.
that being said, he is known to the zailors of London for the tools he makes for them. spyglasses that can see through fog. filters that render zeewater (mostly) drinkable. compasses that always point towards London. simple devices, but all the more sturdy for their simplicity, and invaluable in the hands of a competent zeefarer.
(after all, the doctor first created them as gifts for Rafael: to keep him safe on his travels, and to help him find his way home.)
