I see Lathes UK has a new listing for the QE&M branded lathe that were for sale recently.
Machine Tool Archive
My understanding is that Qualos lathes etc were manufactued by the Quality Engineering & Manufacturing company.
Qualos Lathes
I'd say both produced by the same company. Although, the QE&M lathe is pre WW2 and the Qualos is post WW2, perhaps they were different companys.
Anyone got some knowledge of it ?