OK I've received additional information on the set at Amazon:
It is in a 12 X 12 black box. However, there is not a numbered sticker on the set. Here is some of the promotional text produced by Warner when this was released:
"Reprise Records celebrates the 100th anniversary of the birth of one of the giants of music, Duke Ellington, with an extraordinary, comprehensive, limited-edition five-CD boxed set of his studio work on the label during the early '60s. Ranging from Afro-Latin to pop, symphonic to swing, The Reprise Studio Recordings features stunning solos, orchestral brilliance, imaginative arrangements by Ellington and Billy Strayhorn, and superb stereo sound.
The Reprise Studio Recordings was created in partnership with Mosaic, the most respected jazz reissue label in the world."
Does this help anyone identify whether it is in fact the Mosaic set?
They claim it is "limited," but don't give the number of pieced produced on the outside of the box - where are the Mosaic numbers listed?
Thanks,
Brett.