----- Original Message -----
From: "David Lennick" <[log in to unmask]>
> > Michael Biel [log in to unmask] wrote:
> > >There were many recording studios in business making air-checks by the
end of 1930, especially in Chicago.
> And presumably in New York..I've had two sets of aluminums of Whispering
Jack Smith airchecks from 1931. One of them was done on one turntable
(!)..portions missed during the changeovers. I've also had a number of
airchecks on pressed discs from the Byers Studios in NY, 1930-31, but those
were probably cut on the usual wax masters since they were pressed on
shellac or various laminated substances.
There is always the possibility they were pressed like that oddball
"Boston" record...the one that looks to have been pressed by GG using
a Speak-O-Phone aluminium record as a master, and has S.O.P-# matrix
Steven C. Barr