The first Loco is a steam sentinel that will be running on my Lowe Street Layout at the Southwold Exhibition next weekend. This will run alongside my own Sentinel and will give a more authentic operation than normal as the usual diesel shunter will only be a reserve.
The second Loco is a Diesel shunter from the same factory albeit about half a century later.
Both are weathered to a light-med level and the Steam one has a loop to enable shunting with spratt & winkles