I have only seen one before in a photo online. I am not sure the history as I bought it off Craig. It does look very similar to my old piccolo.
I asked Craig a million and one questions before I bought it but I never opened it to inspect. The boiler is apparently a bit over the two litre mark and the original pressurestats were supposable problematic and he didnt want his name attached to a faulty product hence he upgraded it.
Maybe he can shed more light on it?