When we were spotting the real things way back then, we did call them ‘unrebuilts’ even though it might have been incorrect, but when we were 10-12 years old we didn’t care! As far as we are concerned, they are still ‘unrebuilt’. We also called them ‘unmodified’, ‘square bellies’, and ‘flat-tops’. Who cares - it was (and still is) fun!
Thanks Hornby, I’ll have a few, please, when they come out.