There is an advertisement in the April 2005 issue of 'Engineering in Miniature" for a G13 (6 1/2" centre height) geared head Holbrook tool room lathe. Advert says "excellent clean working condition ... best offer around £550". There is not much detail about this particular model on but as the satisfied owner of a50-year-old B8 (4") I can vouch for the quality and refinement of Holbrooks in general. For starters, when new they came with an NPL certified lead screw. Lead screw and feed drive are separate with a micro-adjustable dog-clutch (there are not many machines on which you can screw-cut in direct drive with confidence!).
Reply is to a 01662 phone number. It is poor netiquette to publish a telephone number on an open forum without the owner's permission but I will gladly forward the full number to anyone who may wish to contact me off-list (Use the "reply-to" address in the header of this posting or "mike-h at ada-augusta dot demon dot co dot uk").