John Lumb of Castleford., Yorks. is a name about which I know nothing, so will leave to others to provide some background information - I could be wrong, but suspect they were agents/wholesalers only and not manufacturers. No idea if they have ever cropped up on the pressed section here previously.
Reg. 860410 was first applied for on 18th November 1949, though for whatever reason this wasn't effected by the Board of Trade until 17th of April 1950, and a similar delay occurred again on two more of Lumb's subsequent applications which the company made on 19th December 1949 -for the same design of bottle - but with slight variations in decoration.
The basic design of bottle shows geometric spiralling around the neck and lower portions of the bottle with a midriff showing some sort of regular pattern, and it's this central band that varies in Lumb's slightly later Registrations .............. perhaps they found the first design sufficiently successful that it encouraged them to knock out a couple more - who knows.
Quite why the CLASS is blank I've no idea - usually Registrants confuse matters by entering the wrong one - or perhaps it's their agent that's responsible. The description of this Registration is rather long winded, though for the subsequent two they shortened this to Decanter.
The final picture here showing wording connecting all three Registrations, was found on the back of one of the sheets for this Archive item - not entirely sure I follow the sense so hope others do, though think I get the gist.
This reply shows pix for 860410 only, with pix for two further separate Registrations in the following reply. I don't recall seeing any of Lumb's bottles in my travels, but maybe I've forgotten.