Please help identify this amp.# i have a very rare class a v...

Please help identify this amp.#
i have a very rare class a valve amp, i was told by its previous owner (back in the 80's) it was late 40's/early 50's. it was ancient then.
it sounds amazing and is mint. it even looks good.
the thing is i have never seen another one like it.
it has a black gloss chassis & steel grill with a leather handle on top, very similar to a vox night train (chassis almost identical), but from the top front edge of the grill, it slopes up towards the back edge. it is covered in vertical vents of about 1cm long, rounded at either end. it makes beautiful patterns when the valves light up & sounds amazing. any ideas what it could be as i'm thinking of putting it up for sale

Is there anything written on it? Can you post a picture?

no there is nothing written on it, or inside it. I have serviced it in the past & scrutinised it for some sort of identity. unfortunately i can't post a picture of it as it is locked up in my old studio a few hours drive away. I wont get chance to get there till next month.

Anything I'd say would be a wild guess.
Sorry.