from what i have read is that 1/76 is the railway scale and airfix back in the day made a lot of kits to go with this such as buildings and all sorts of railway things including vehicles (and some of these are under the dapol name now) but since then 1/72 scale has become the standard size that manufactures have settled on for models.
I read all of that because im helping my son build a model railway and he wants the airfix buildings to build and put on it hence finding out that dapol now have some of the moulds for these, but i am still reading and learning in this area so what i have learnt now could all change âšī¸