Roger and Allison Kulp wrote:
Bob,
Dead wax is the term for the area in between the label.and the end of the runoff groove.Actually 
non-promo test pressings get out there quite a bit.I own several dozen.At least 100 or 
so,including one of "A Christmas Gift to You From Philles Records".The oldest one I have seen,is 
an early Columbia test pressing of an uncredited recording of "Casey Jones",that I was able to 
date to about 1906.I sold it on eBay last year.This had a blank white label,with the title 
written in pencil,and the label usually found on the backs of Columbia of this period.
                                    Roger
Apropos of nothing;  I remember as a teen discovering cryptic messages inscribed in the "dead wax" 
(thanks for a new term!) area of LPs I purchased.  They  must have been cut into the masters and 
most messages were in the (for lack of a better term) retrace area that parks the needle at the 
end of the record.
Can't even remember which albums had these strange tags on the retrace; anyone else know of this 
practice and any history behind it?
Thanks.
--
S. Frank Wylie
Independent Motion Picture Specialist
Dayton, Ohio