One further point, which appears to have escaped attention, and that concerns the mainframe profile in front of the smoke box. Number 488 of the 1885 Neilson batch had a singular frame profile which dropped from the front of the smokebox, almost to footplate level. Hornby and Oxford seem to have captured this well with their models of 488 in LSW livery. Oxford show 3520 correctly in Southern Green, but show an incorrect profile for the same loco when in Bulleid's utility black. Caveat Emptor.