The hubs are Harden large flange undrilled known as bacon slicers in the UK. They use annular cartridge bearings and were introduced in 1946. Harden ceased to manufacture hubs by about 1953.
Hilary Stone, Bristol, England
Aldo Ross wrote:
> I just passed the April issue of Cycling+ around the office, and we all agree
> that the Hobbs "Blue Riband" on page15 is a lovely and graceful machine.
> But... everyone wants to know what those hubs are?