Okay, I've added wagons, and done quite a bit of 'improvement' work. At least, I hope it's been improved

I've broken down the table(s) into categories, sorted the locomotives into wheel arrangement and broken down wagons into broad types. If everyone's happy with the list format now, I'll be happy to get the same list started for Dapol (and perhaps some others).
I also noticed that some edits were made that apparently removed a couple of my entries (probably by overwriting). I'm sure it was accidental, but can we be very, very careful with data entry in the table, please? The format is a little complicated until you get used to it and it seems to be all too easy to make a mistake. The trick to doing it well is to use the 'Preview' button again and again until you're absolutely sure you're happy with it.
Now, what do we do about adding photos?