The M7 is a beautiful loco with if a bit unconventional. I have 4 Hornby LSWR coaches, and I’d love to pick up an M7 in the Mint and chocolate green livery to pull them.
When I see that particular loco I always wonder how it was able to have enough traction on the rails (in real live I mean). It looks odd with the driving wheels at the front. But what do I know