#1-1 to 4-4 tracks are mono. #4 -5 to 6-9 tracks are stereo.
Recording dates, at Van Gelder Studio, Hackensack, New Jersey: #1-1 to 1-8: March 27, 1955. #1-9 to 2-1: November 25, 1956. #2-2 to 2-6: January 13, 1957. #3-1 to 3-8: Mach 8, 1957. #3-9 to 4-4: April 21, 1957. #4-5 to 4-10: June 23, 1957. #5-1 to 5-6: August 18, 1957. #5-7 to 6-1: October 20, 1957. #6-2 to 6-9: February 9, 1958.