Looks a bit like the Corgi Commer Milk float bottles to me, though I thought the red box base was white.Mish.
Thanks Mish. I thought so too. I shall pursue that line a bit more.
They do look a bit like the Corgi but the Corgi are 4x9 in layout while these are 4x6. Also the red box, besides being red instead of white, is also too thick to be the Corgi.
The white bottles are all connected and slide out of the crate as a single unit Lance if that's any help.