'Penguin Swing' 1937-1941

A1: New York, February 10th, 1938 (from acetates of recording session for which no assigned matrices have been found) B1: New York, December 10th, 1937 A3, A4: New York, January 26th, 1938 A5: New York, July 17th, 1939 A6 to A8: New York, May 18th, 1940 B1: Chicago, June 27th, 1940 B2: New York, August 5th, 1940 B3, B4: New York, August 28th, 1940 B5 to B8: New York, March 5th, 1941 There seems to be two versions of the cover for this one. Both are VERY similar, but one has text that is more cr...