British Trade Tokens, Tickets and Passes, Numismatic Books

Mining, Cumberland, Clifton, Clifton Colliery, [John] Porter and [John] Nelson, copper, porter nelson dividing floral ornaments, rev. three-masted ship, 30mm, 7.02g/7h (Finlay 135; D & W –; cf. DNW 72, 1344). Fair, extremely rare
£80-100

Porter and Nelson took a lease from Henry Curwen IV of a colliery at Clifton for 9 years in 1726, at £80 per annum (Finlay, p.57)