I neglected to mention that there is another copy at Lester Levy; same publishers and apparantly the same date, (no images of the notation given) with a different, pictorial front cover which says "Successfully Introduced by Chauncey Olcott in Geo. M. Cohan's New Comedy "The Voice Of McConnell".  It has been signed in two places; one dated -I think- Nov 12 1919.  The image is  here.

Malcolm