Denny Zeitlin LP-Soundings/ Free Improvisations Solo Piano-1750 Arch Records

The inner sleeve is either plastic or cellophane. The gentleman had his own filing system of his collection & every sleeve and/or box is labeled. You can see that label in the photos that I've uploaded.

Denny Zeitlin With George Marsh And Mel Graves – Expansion (1975, Vinyl) - Discogs

Pianist Zeitlin marks first album's 50th anniversary – The Mercury News

OUT-OF-PRINT JAZZ LP LIST! SOME RARE - Delmark Records

The Skinny November 2006 by The Skinny - Issuu

Grateful Dead Family Discography: Keystone Korner Discography

Denny Zeitlin

Denny Zeitlin - Free Improv/What Is This Thing Called Love

Denny Zeitlin

Solo Jazz LP Vinyl Records for sale

Grateful Dead Family Discography: Keystone Korner Discography