Watch List notes:

COMMEMORATIVE MEDALS, BRITISH HISTORICAL MEDALS, London, Custom House, Shield-shaped Lead Porter's Badge, City arms, BEADLE on bar of cross, rev No 127 JUNE 183[2] G W Jones Ticket Porter CUSTOM HOUSE, integral suspension loop, 53mm x 48mm (D&W 301/14A, this piece). Fine and very rare.
The badge relates to the new Custom House built by David Laing (1774-1856) and though completed in 1817 it suffered a partial collapse in 1825.

Estimate: £100-150