I have seen them at ‘antique markets’ and lock shows new in there boxes complete with made in Taiwan / China stickers on the back of the locks.
I have also spoken with the UK maker of the Genuine article who have confirmed that they never have made this lock with another name on it - Never.
There is also a site on the net that imports these things in bulk - I’ll try and find the link for it.
There are other examples of this lock on this site.
There really isn’t any doubt about what this lock is …………