Steam locomotive and tender, North Eastern Railway, 4-4-0 No.1621, designed by Wilson Worsdell, built at Gateshead in 1893, withdrawn in 1945.

The NER Class M1s were designed by Wilson Wordsell and were an immediate success. They were quick - on the night of 21st August 1895 this engine, No. 1621, ran from York to Newcastle in 78.5 minutes at an average speed of 61.5mph, an impressive achievement for the period which was only beaten by its sister locomotive No. 1620 which set a new average record of 65mph.

Twenty M1 class locomotives were built and the last example was withdrawn in 1945.