I was aware of 47580 & 37264 running from Tyseley to the SVR, and the DRS convoy from Crewe to Stowmarket, but the 37s on a test train were a surprise.
One of the photos showing the DRS convoy:-
I was aware of 47580 & 37264 running from Tyseley to the SVR, and the DRS convoy from Crewe to Stowmarket, but the 37s on a test train were a surprise.
One of the photos showing the DRS convoy:-