Paul,
I've seen the remenants of such a system .. looks a little bit like skirting boards (base boards) or heavy picture rail
If it's a public building, he's got to comply with current IEE regs I would assume.
I often find understated modern fittings can look far better in a very old structure anyway. They're less clunky looking.
[This message has been edited by djk (edited 11-29-2006).]
[This message has been edited by djk (edited 11-29-2006).]