Hi folks. Does anyone know who made the frame for that rather nice and expensive BSA C15 for sale in the adds. Too expensive for me but would like a good frame to build my own.

Don't know who built that but Jim pickering does the Drayton c15 frame  Really nice and well made at a good price

Yeah I know and Faber Otter type too. I just prefer that one.

personal humble opinion here - but the faber otter is a very different beast to the Drayton, I can speak from personal experience as I own both.  The faber otter is better suited to 'open traditional sections'  the Drayton will cope with anything you are capable of throwing at it tight fiddly nadgery sections as well as the open type section.  a further word to the wise, I would checkout Charlie Prescott website the BSA Otter http://www.bsaotter.com/ for info.  the original harry foster Otter was very good, later copies were "long", affectionately known as the "long dog" later versions i believe were shortened and again in my opinion the drayton has the advantage of a NON Oil carrying frame.