The discogs link given by Rooster has only one (compilation) album featuring Bud. It's the album linked to by romualdo. The album from that second discogs link has 2 cuts with Bud: 1. Perdido, with Bird, Mingus and Dizzy, seemingly from Massey Hall; 2. Under My Skin by a "Bud Powell Trio" with Mingus and Max. Appears to be from the Toronto Debut session, but I can't tell when it was released (at least, the available Wiki material is unclear with regard to that track).  

Unreleased tracks from "The Real Lee Konitz" on Atlantic. Classic !!!  

Tom Lord Jazz Discography shows only one Bud Powell track appearing on an LP issued on Design. "I've Got You Under My Skin" from the Massey Hall concert in 1953 with Mingus/Roach. This  and all other tracks on DLP29 were originally issued on Mingus' Debut label. It's possible that Bob misspoke and meant Debut rather than Design, but Bud on Debut in this time frame only means the Massey Hall quintet performances with Bird/Dizzy/Mingus/Max and the trio portion of the concert with just the rhythm section -- and I would certainly not describe Bud's playing here as erratic. 

November 1 Don Robey - 1903 Bill Anderson - 1937 Kinky Friedman - 1944 Rick Grech - 1945 David Foster - 1949 Dan Peek - 1950 Lyle Lovett - 1957  

Yes, but which sessions were recorded for Design?  Blumenthal seems to say that there was a session for Design.  Maybe it's just an error on his part.