6651 1960s Chester probably
Allocated to Croes Newydd but that was a roundhouse and did not have Jinties. It could just be Birkenhead but I don't think Croes Newydd locos worked up there very often.
Note the Rembling Bar lying on the floor, which was positioned between rail and wheel to manually move locomotives.
Dictionary definition - Remble (chiefly East Midlands) To move in order to make tidy.