result for mudlarking definition
A mudlark is someone who scavenges in river mud for items of value, a term used especially to describe those who scavenged this way in London during the late 18th and 19th centuries
Type of Permits
The Port of London Authority issues two types of foreshore permits.
Standard - allows digging to a depth of 7.5 cm
Mudlark - allows digging to a depth of 1.2m
The Mudlark permit is only issued to members of the Thames Mudlark Society. To apply for membership you must meet certain criteria, hold a Standard Permit for two years and have a record of reporting finds to the Museum of London.
Museum of London and the Thames Mudlark Society, now there you go. You're on an inside track with each one.