GNR Class J23 - Numbering

Numbering

On the GNR, the numbers were 157–164, 166–176, 178, 211–230; these were increased by 3000 by the LNER. The first ten engines built by the LNER were numbered 3231–40, following on from the GNR engines; but those built from 1926 were given scattered numbers between 583 and 636, between 1037 and 1086, and 2789–94.

In 1943, new numbers were allotted in a continuous block from 8890 to 8991; these numbers were applied between January and December 1946, but before this could be done, the oldest ten, nos. 3157–64/6/7 were temporarily renumbered 3180–9 in May and June 1945. They duly received their permanent numbers 8890–9 between June and December 1946. Under British Railways, the 1946 numbers were increased by 60000.