The October 11, 1943, issue of LIFE Magazine has an eight-page photo shoot of an all-night New York City jam session that included many of greatest jazz musicians and singers of the time, and it was all recorded by Army sound engineers to be issued on 12-inch 78rpm Vdiscs for American troops overseas. Like most Vdiscs, these were unique recordings that never saw commercial release. The musicians were not paid or regulated in any way. Thus Vdiscs often feature combinations of performers never heard on commercial releases.