TLS signed "John Lennon" and "Yoko Ono," one page, 8.5 x 11, Capitol Records letterhead, March 9, 1973. Ono writes a letter to Paul Gregg of KOL-FM Radio, in full: "I've been wanting to write to thank you for giving me the airtime to talk about my new album, and to thank you for the attention you've paid 'Approximately Infinite Universe' since its release. I am very pleased with the positive attitude and remarks that have been the essence of reaction to the album in the U.S. and abroad. Our love goes out to you and yours." Lennon has signed below a typed postscript, "I agree--John." In fine condition. Accompanied by full letters of authenticity from Perry Cox and Tracks, as well as a letter of provenance from the original recipient, in part: "In 1973 I was working as the mid-day DJ on a Seattle radio station, KOL-FM...It was common for us to interview recording artists either live in the studio or by phone when new albums were being released. This was the situation when the representative from Capitol Records arranged for Yoko and John to phone in during my radio show...As I recall we chatted for about 15 minutes, I played a couple of cuts, and that was that. About a week or so later I received this thank you letter." Also accompanied by a pair of original test pressings of the referenced album that were formerly the property of KOL-FM. Lennon co-produced Ono's 1972 double album Approximately Infinite Universe, while also playing guitar and adding backing vocals under the anagram Joel Nohnn.