Watch List notes:

Sir Marc Isambard Brunel, FRS, FRSE (1769-1849), the Thames Tunnel, white metal medals (6); completed, 1842, by J. Davis, bust l., rev. the entrance to the twin tunnels, with horseman in one, 44mm. (BHM.2080); opened, 1843, by J. Taylor (3), bust l., rev. view of the Rotherhithe entrance to the twin tunnels, from circular staircase, 49mm. (BHM.2136; cf. Eimer 1373); smaller (2), one obv. unsigned, rev. with horse and cart, 38.5mm. (BHM.2140); by W. Griffin (2), the Rotherhithe and Wapping entrances, only one signed, 36mm. (BHM.2131); brass jeton, 1842, by W. Griffin, 22mm.; Launching of Isambard Kingdom Brunel's SS Great Britain, white metal, 1843, by J. Davis, 43mm. (BHM.2116), this and one BHM.2140 fine, others very fine or better (8)
The numerals 4 and 6 of cost of £416,000 shown on the second medal appear to be overstruck. Isambard Kingdom Brunel (1806-1859).
(Estimate: 120-160 GBP)