Derby also loaned a loco to Leys Foundry which one is not recoded in files I was able to see but it would have to have been an 0-4-0, nor did they record why the works Sentinel had failed. I'm sure that it wasn't a Free loan, again I didn't see any hiring costs listed.
Word around the foundry was that on first entering the works yard between a couple of buildings the Derby Engine's chimney fouled the overhead electricity cables shutting down a portion of the works.