Joe Moore wrote:
Dan played a steel 6 string acoustic (couldn't see the make from afar) and another smaller bodied type in DADGAD tuning ( I'm almost sure :-\ for slide ).
DADGAD is an unsual choice for slide, no? More likely open D - almost the same DADF#AD.
DADGAD is usually the stomping ground of eccentrics and crusties - Davy Graham, Bert Jansch, John Martyn, Squonk...