With a noticeable dent in its boiler claddding, possibly from the ash removal crane on its home shed at Laira, that shed's 70021, " Morning Star " builds up speed at the very foot of Hemerdon bank ready for the unassisted climb on the 1 in 42 gradient which lies immediately ahead.
There is no pilot engine, so the load must be within 70021's limit, the date is 17th. March, 1956 and this is a Paddington bound express.